diff --git a/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseFieldReference.java b/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseFieldReference.java
index f056f245..862e342b 100644
--- a/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseFieldReference.java
+++ b/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseFieldReference.java
@@ -32,6 +32,7 @@
 package org.jf.dexlib2.base.reference;
 
 import org.jf.dexlib2.iface.reference.FieldReference;
+import org.jf.dexlib2.util.ReferenceUtil;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -64,4 +65,8 @@ public abstract class BaseFieldReference implements FieldReference {
         if (res != 0) return res;
         return getType().compareTo(o.getType());
     }
+
+    @Override public String toString() {
+        return ReferenceUtil.getFieldDescriptor(this);
+    }
 }
diff --git a/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseMethodProtoReference.java b/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseMethodProtoReference.java
index c0d38b0b..2fc5ed13 100644
--- a/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseMethodProtoReference.java
+++ b/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseMethodProtoReference.java
@@ -33,6 +33,7 @@ package org.jf.dexlib2.base.reference;
 
 import com.google.common.collect.Ordering;
 import org.jf.dexlib2.iface.reference.MethodProtoReference;
+import org.jf.dexlib2.util.ReferenceUtil;
 import org.jf.util.CharSequenceUtils;
 import org.jf.util.CollectionUtils;
 
@@ -63,4 +64,8 @@ public abstract class BaseMethodProtoReference implements MethodProtoReference {
         if (res != 0) return res;
         return CollectionUtils.compareAsIterable(Ordering.usingToString(), getParameterTypes(), o.getParameterTypes());
     }
+
+    @Override public String toString() {
+        return ReferenceUtil.getMethodProtoDescriptor(this);
+    }
 }
diff --git a/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseMethodReference.java b/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseMethodReference.java
index 3ff6f7db..f297760e 100644
--- a/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseMethodReference.java
+++ b/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseMethodReference.java
@@ -33,6 +33,7 @@ package org.jf.dexlib2.base.reference;
 
 import com.google.common.collect.Ordering;
 import org.jf.dexlib2.iface.reference.MethodReference;
+import org.jf.dexlib2.util.ReferenceUtil;
 import org.jf.util.CharSequenceUtils;
 import org.jf.util.CollectionUtils;
 
@@ -70,4 +71,8 @@ public abstract class BaseMethodReference implements MethodReference {
         if (res != 0) return res;
         return CollectionUtils.compareAsIterable(Ordering.usingToString(), getParameterTypes(), o.getParameterTypes());
     }
+
+    @Override public String toString() {
+        return ReferenceUtil.getMethodDescriptor(this);
+    }
 }
diff --git a/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseStringReference.java b/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseStringReference.java
index c6daa91e..2f13c1ae 100644
--- a/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseStringReference.java
+++ b/dexlib2/src/main/java/org/jf/dexlib2/base/reference/BaseStringReference.java
@@ -58,5 +58,5 @@ public abstract class BaseStringReference implements StringReference {
     @Override public int length() { return getString().length(); }
     @Override public char charAt(int index) { return getString().charAt(index); }
     @Override public CharSequence subSequence(int start, int end) { return getString().subSequence(start, end); }
-    @Override public String toString() { return getString(); }
+    @Override @Nonnull public String toString() { return getString(); }
 }