diff --git a/src/Mods/Element/Specific/Location/HoldingSimple.php b/src/Mods/Element/Specific/Location/HoldingSimple.php
index 4eae5f3..a21bb2e 100644
--- a/src/Mods/Element/Specific/Location/HoldingSimple.php
+++ b/src/Mods/Element/Specific/Location/HoldingSimple.php
@@ -40,22 +40,25 @@ public function __construct(\SimpleXMLElement $xml)
     }
 
     /**
-     * Get the value of the <copyInformation> element.
+     * Get the the array of the <copyInformation> elements.
      * @see https://www.loc.gov/standards/mods/userguide/location.html#copyinformation
      *
      * @access public
      *
      * @param string $query The XPath query for metadata search
      *
-     * @return ?CopyInformation
+     * @return CopyInformation[]
      */
-    public function getCopyInformation(string $query = ''): ?CopyInformation
+    public function getCopyInformation(string $query = ''): array
     {
+        $copyInformation = [];
         $xpath = './mods:copyInformation' . $query;
         $element = new Element($this->xml, $xpath);
         if ($element->exists()) {
-            return new CopyInformation($element->getValues()[0]);
+            foreach ($element->getValues() as $value) {
+                $copyInformation[] = new CopyInformation($value);
+            }
         }
-        return null;
+        return $copyInformation;
     }
 }
diff --git a/src/Mods/Element/Specific/Location/HoldingSimple/CopyInformation.php b/src/Mods/Element/Specific/Location/HoldingSimple/CopyInformation.php
index 8838fd9..e717dc1 100644
--- a/src/Mods/Element/Specific/Location/HoldingSimple/CopyInformation.php
+++ b/src/Mods/Element/Specific/Location/HoldingSimple/CopyInformation.php
@@ -55,12 +55,7 @@ public function __construct(\SimpleXMLElement $xml)
      */
     public function getForm(string $query = ''): ?Form
     {
-        $xpath = './mods:form' . $query;
-        $element = new Element($this->xml, $xpath);
-        if ($element->exists()) {
-            return new LanguageElement($element->getValues()[0]);
-        }
-        return null;
+        return $this->getLanguageElement('./mods:form' . $query);
     }
 
     /**
@@ -75,52 +70,42 @@ public function getForm(string $query = ''): ?Form
      */
     public function getSubLocations(string $query = ''): array
     {
-        $subLocations = [];
-        $xpath = './mods:subLocation' . $query;
-        $element = new Element($this->xml, $xpath);
-        if ($element->exists()) {
-            foreach ($element->getValues() as $value) {
-                $subLocations[] = new LanguageElement($value);
-            }
-        }
-        return $subLocations;
+        return $this->getLanguageElements('./mods:subLocation' . $query);
     }
 
     /**
-     * Get the value of the <shelfLocator> element.
+     * Get the the array of the <shelfLocator> elements.
      * @see https://www.loc.gov/standards/mods/userguide/location.html#copyshelflocator
      *
      * @access public
      *
      * @param string $query The XPath query for metadata search
      *
-     * @return LanguageElement
+     * @return LanguageElement[]
      */
-    public function getShelfLocator(string $query = ''): LanguageElement
+    public function getShelfLocators(string $query = ''): array
     {
-        $xpath = './mods:shelfLocator' . $query;
-        $element = new Element($this->xml, $xpath);
-        if ($element->exists()) {
-            return new LanguageElement($element->getValues()[0]);
-        }
-        return null;
+        return $this->getLanguageElements('./mods:shelfLocator' . $query);
     }
 
     /**
-     * Get the value of the <electronicLocator> element.
+     * Get the array of the <electronicLocator> elements.
      * @see https://www.loc.gov/standards/mods/userguide/location.html#electroniclocator
      *
      * @access public
      *
-     * @return string
+     * @return string[]
      */
-    public function getElectronicLocator(): string
+    public function getElectronicLocators(): array
     {
+        $electronicLocators = [];
         $element = new Element($this->xml, './mods:electronicLocator');
         if ($element->exists()) {
-            return $element->getValues()[0];
+            foreach ($element->getValues() as $value) {
+                $electronicLocators[] = $value;
+            }
         }
-        return '';
+        return $electronicLocators;
     }
 
     /**
@@ -147,42 +132,48 @@ public function getNotes(string $query = ''): array
     }
 
     /**
-     * Get the value of the <enumerationAndChronology> element.
+     * Get the array of the <enumerationAndChronology> element.
      * @see https://www.loc.gov/standards/mods/userguide/location.html#enumerationandchronology
      *
      * @access public
      *
      * @param string $query The XPath query for metadata search
      *
-     * @return ?EnumerationAndChronology
+     * @return EnumerationAndChronology[]
      */
-    public function getEnumerationAndChronology(string $query = ''): ?EnumerationAndChronology
+    public function getEnumerationAndChronologies(string $query = ''): array
     {
+        $enumerationAndChronologies = [];
         $xpath = './mods:enumerationAndChronology' . $query;
         $element = new Element($this->xml, $xpath);
         if ($element->exists()) {
-            return new EnumerationAndChronology($element->getValues()[0]);
+            foreach ($element->getValues() as $value) {
+                $enumerationAndChronologies[] = new EnumerationAndChronology($value);
+            }
         }
-        return null;
+        return $enumerationAndChronologies;
     }
 
     /**
-     * Get the value of the <itemIdentifier> element.
+     * Get the the array of the <itemIdentifier> elements.
      * @see https://www.loc.gov/standards/mods/userguide/location.html#itemidentifier
      *
      * @access public
      *
      * @param string $query The XPath query for metadata search
      *
-     * @return ?ItemIdentifier
+     * @return ItemIdentifier[]
      */
-    public function getItemIdentifier(string $query = ''): ?ItemIdentifier
+    public function getItemIdentifiers(string $query = ''): array
     {
+        $itemIdentifiers = [];
         $xpath = './mods:itemIdentifier' . $query;
         $element = new Element($this->xml, $xpath);
         if ($element->exists()) {
-            return new EnumerationAndChronology($element->getValues()[0]);
+            foreach ($element->getValues() as $value) {
+                $itemIdentifiers[] = new ItemIdentifier($value);
+            }
         }
-        return null;
+        return $itemIdentifiers;
     }
 }
diff --git a/tests/Mods/ModsReaderTest.php b/tests/Mods/ModsReaderTest.php
index b34bed2..db909db 100644
--- a/tests/Mods/ModsReaderTest.php
+++ b/tests/Mods/ModsReaderTest.php
@@ -474,12 +474,13 @@ public function testGetLocationsForBookDocument()
         self::assertNotNull($holdingSimple);
 
         $copyInformation = $holdingSimple->getCopyInformation();
-        self::assertNotNull($copyInformation);
-        self::assertNotEmpty($copyInformation->getSubLocations());
-        self::assertEquals('Reading room', $copyInformation->getSubLocations()[0]->getValue());
-        self::assertEquals('QH511.A1J68', $copyInformation->getShelfLocator()->getValue());
-        self::assertEquals('1', $copyInformation->getEnumerationAndChronology()->getUnitType());
-        self::assertEquals('v.1-v.2 1999-2002', $copyInformation->getEnumerationAndChronology()->getValue());
+        self::assertNotEmpty($copyInformation);
+        self::assertNotEmpty($copyInformation[0]->getSubLocations());
+        self::assertEquals('Reading room', $copyInformation[0]->getSubLocations()[0]->getValue());
+        self::assertNotEmpty($copyInformation[0]->getShelfLocators());
+        self::assertEquals('QH511.A1J68', $copyInformation[0]->getShelfLocators()[0]->getValue());
+        self::assertEquals('1', $copyInformation[0]->getEnumerationAndChronologies()[0]->getUnitType());
+        self::assertEquals('v.1-v.2 1999-2002', $copyInformation[0]->getEnumerationAndChronologies()[0]->getValue());
     }
 
     public function testGetLocationsByQueryForBookDocument()