diff --git a/src/java/org/apache/poi/ss/formula/ptg/Area3DPxg.java b/src/java/org/apache/poi/ss/formula/ptg/Area3DPxg.java
index b02f3e184..9fce295ac 100644
--- a/src/java/org/apache/poi/ss/formula/ptg/Area3DPxg.java
+++ b/src/java/org/apache/poi/ss/formula/ptg/Area3DPxg.java
@@ -17,6 +17,7 @@
 
 package org.apache.poi.ss.formula.ptg;
 
+import org.apache.poi.ss.formula.SheetNameFormatter;
 import org.apache.poi.ss.util.AreaReference;
 import org.apache.poi.util.LittleEndianOutput;
 
@@ -87,7 +88,7 @@ public final class Area3DPxg extends AreaPtgBase implements Pxg {
             sb.append(externalWorkbookNumber);
             sb.append(']');
         }
-        sb.append(sheetName);
+        SheetNameFormatter.appendFormat(sb, sheetName);
         sb.append('!');
         sb.append(formatReferenceAsString());
         return sb.toString();
diff --git a/src/java/org/apache/poi/ss/formula/ptg/Deleted3DPxg.java b/src/java/org/apache/poi/ss/formula/ptg/Deleted3DPxg.java
index 147b329b7..c8cdd3ec3 100644
--- a/src/java/org/apache/poi/ss/formula/ptg/Deleted3DPxg.java
+++ b/src/java/org/apache/poi/ss/formula/ptg/Deleted3DPxg.java
@@ -17,6 +17,7 @@
 
 package org.apache.poi.ss.formula.ptg;
 
+import org.apache.poi.ss.formula.SheetNameFormatter;
 import org.apache.poi.ss.usermodel.ErrorConstants;
 import org.apache.poi.util.LittleEndianOutput;
 
@@ -71,7 +72,7 @@ public final class Deleted3DPxg extends OperandPtg implements Pxg {
             sb.append(']');
         }
         if (sheetName != null) {
-            sb.append(sheetName);
+            SheetNameFormatter.appendFormat(sb, sheetName);
         }
         sb.append('!');
         sb.append(ErrorConstants.getText(ErrorConstants.ERROR_REF));
diff --git a/src/java/org/apache/poi/ss/formula/ptg/NameXPxg.java b/src/java/org/apache/poi/ss/formula/ptg/NameXPxg.java
index bac4fbee2..165579032 100644
--- a/src/java/org/apache/poi/ss/formula/ptg/NameXPxg.java
+++ b/src/java/org/apache/poi/ss/formula/ptg/NameXPxg.java
@@ -17,6 +17,7 @@
 
 package org.apache.poi.ss.formula.ptg;
 
+import org.apache.poi.ss.formula.SheetNameFormatter;
 import org.apache.poi.util.LittleEndianOutput;
 
 /**
@@ -79,7 +80,7 @@ public final class NameXPxg extends OperandPtg implements Pxg {
             sb.append(']');
         }
         if (sheetName != null) {
-            sb.append(sheetName);
+            SheetNameFormatter.appendFormat(sb, sheetName);
         }
         sb.append('!');
         sb.append(nameName);
diff --git a/src/java/org/apache/poi/ss/formula/ptg/Ref3DPxg.java b/src/java/org/apache/poi/ss/formula/ptg/Ref3DPxg.java
index 9a2dc606f..d851b4474 100644
--- a/src/java/org/apache/poi/ss/formula/ptg/Ref3DPxg.java
+++ b/src/java/org/apache/poi/ss/formula/ptg/Ref3DPxg.java
@@ -17,6 +17,7 @@
 
 package org.apache.poi.ss.formula.ptg;
 
+import org.apache.poi.ss.formula.SheetNameFormatter;
 import org.apache.poi.ss.util.CellReference;
 import org.apache.poi.util.LittleEndianOutput;
 
@@ -86,7 +87,9 @@ public final class Ref3DPxg extends RefPtgBase implements Pxg {
             sb.append(externalWorkbookNumber);
             sb.append(']');
         }
-        sb.append(sheetName);
+        if (sheetName != null) {
+            SheetNameFormatter.appendFormat(sb, sheetName);
+        }
         sb.append('!');
         sb.append(formatReferenceAsString());
         return sb.toString();
diff --git a/src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFFormulaParser.java b/src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFFormulaParser.java
index 1da7b27ec..d18705eb2 100644
--- a/src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFFormulaParser.java
+++ b/src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFFormulaParser.java
@@ -130,6 +130,15 @@ public final class TestXSSFFormulaParser {
         assertEquals("A1", ((Ref3DPxg)ptgs[0]).format2DRefAsString());
         assertEquals("Uses!A1", ((Ref3DPxg)ptgs[0]).toFormulaString());
         
+        // Reference to a single cell in a different sheet, which needs quoting
+        ptgs = parse(fpb, "'Testing 47100'!A1");
+        assertEquals(1, ptgs.length);
+        assertEquals(Ref3DPxg.class, ptgs[0].getClass());
+        assertEquals(-1,   ((Ref3DPxg)ptgs[0]).getExternalWorkbookNumber());
+        assertEquals("Testing 47100", ((Ref3DPxg)ptgs[0]).getSheetName());
+        assertEquals("A1", ((Ref3DPxg)ptgs[0]).format2DRefAsString());
+        assertEquals("'Testing 47100'!A1", ((Ref3DPxg)ptgs[0]).toFormulaString());
+        
         // Reference to a sheet scoped named range from another sheet
         ptgs = parse(fpb, "Defines!NR_To_A1");
         assertEquals(1, ptgs.length);