diff --git a/masonry/core.py b/masonry/core.py
index 939dd2c2..81bcbc32 100644
--- a/masonry/core.py
+++ b/masonry/core.py
@@ -69,15 +69,7 @@ def get_justifications(self, standard_key, control_key):
         })
         return justifications
 
-    def export_references(self, references, export_dir):
-        """ Given a list of references in either list or dict format,
-        determin which references were saved locally and saves those to
-        the appropriate location in the export directory  """
-        if not export_dir:
-            return references
-        relative_base_path = os.path.join(self.system_key, self.component_key)
-        output_base_path = os.path.join(export_dir, relative_base_path)
-        utils.create_dir(output_base_path)
+    def collect_references(self, references, output_base_path, relative_base_path):
         for reference in utils.inplace_gen(references):
             path = reference.get('path', 'NONE')
             file_import_path = os.path.join(self.component_directory, path)
@@ -90,6 +82,21 @@ def export_references(self, references, export_dir):
                 # Rename path
                 file_relative_path = os.path.join(relative_base_path, path)
                 reference['path'] = file_relative_path
+
+    def export_references(self, references, export_dir):
+        """ Given a list of references in either list or dict format,
+        determin which references were saved locally and saves those to
+        the appropriate location in the export directory  """
+        if not export_dir:
+            return references
+        relative_base_path = os.path.join(self.system_key, self.component_key)
+        output_base_path = os.path.join(export_dir, relative_base_path)
+        utils.create_dir(output_base_path)
+        self.collect_references(
+            references=references,
+            output_base_path=output_base_path,
+            relative_base_path=relative_base_path
+        )
         return references
 
     def export(self, export_dir=None):
diff --git a/tox.ini b/tox.ini
index fca72404..2860789d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist= py34, flake8
+envlist= py3, flake8
 
 [testenv]
 commands=py.test --cov src {posargs}
@@ -15,5 +15,5 @@ basepython = python3
 deps =
     flake8
 commands =
-    flake8 src tests --max-line-length=120 --ignore=E731 
+    flake8 src tests --max-line-length=120 --ignore=E731
     flake8 masonry tests --max-line-length=120