diff --git a/md_pdf/build/__init__.py b/md_pdf/build/__init__.py
index 3a753ad..5a5823f 100644
--- a/md_pdf/build/__init__.py
+++ b/md_pdf/build/__init__.py
@@ -8,9 +8,7 @@ import os
 
 def build(config):
     data = read_files(os.path.abspath(config.input))
-    doc = build_document(data,
-        os.path.abspath(config.bibliography) if 'bibliography' in config else None
-    )
+    doc = build_document(data, getattr(config, 'bibliography', None))
     if 'html' in config.output_formats:
         output_html(doc, os.path.abspath(config.output_dir))
     if 'pdf' in config.output_formats:
diff --git a/md_pdf/build/pandoc.py b/md_pdf/build/pandoc.py
index c7e4f63..2853457 100644
--- a/md_pdf/build/pandoc.py
+++ b/md_pdf/build/pandoc.py
@@ -1,7 +1,7 @@
 import pypandoc
 from bs4 import BeautifulSoup
-import os.path
-from md_pdf.consts import PROJECT_DIR
+import os
+from md_pdf.consts import PROJECT_DIR, CSL_DIR
 
 
 CSL_FILE = os.path.join(PROJECT_DIR, 'assets', 'harverd.csl')
@@ -21,15 +21,15 @@ def output_html(html, out_dir):
         f.write(html)
 
 
-def build_document(files_content, bibliography=None):
+def build_document(files_content, bibliography):
     args = [
         '-s',
     ]
     filters = []
     if bibliography is not None:
         args += [
-            '--bibliography={}'.format(bibliography),
-            '--csl={}'.format(CSL_FILE)
+            '--bibliography={}'.format(os.path.abspath(bibliography.references)),
+            '--csl={}'.format(os.path.join(CSL_DIR, "{}.csl".format(bibliography.csl)))
         ]
         filters.append('pandoc-citeproc')
 
diff --git a/md_pdf/config/validate.py b/md_pdf/config/validate.py
index 0459ca1..97a55b5 100644
--- a/md_pdf/config/validate.py
+++ b/md_pdf/config/validate.py
@@ -1,4 +1,5 @@
 from md_pdf.exceptions import ConfigValidationException
+from md_pdf.consts import CSL_DIR
 import os
 
 
@@ -29,9 +30,15 @@ def test_output(config):
 def validate_bibliography(config):
     if 'bibliography' not in config:
         return
-    abs_bibliography = os.path.abspath(config.bibliography)
+    if 'references' not in config.bibliography:
+        raise ConfigValidationException("Missing References Path")
+
+    abs_bibliography = os.path.abspath(config.bibliography.references)
     if not os.path.isfile(abs_bibliography):
         raise ConfigValidationException("Invalid bibliography path: '{}'".format(abs_bibliography))
+    if 'csl' in config.bibliography:
+        if not os.path.isfile(os.path.join(CSL_DIR, "{}.csl".format(config.bibliography.csl))):
+            raise ConfigValidationException("Could not find CSL '{}'".format(config.bibliography.csl))
 
 
 def validate_config(config):
diff --git a/test-files/mdp.yml b/test-files/mdp.yml
index c7ddace..63e1ac9 100644
--- a/test-files/mdp.yml
+++ b/test-files/mdp.yml
@@ -3,4 +3,6 @@ output_formats:
   - html
   - pdf
 output_dir: out/
-bibliography: bib.yaml
+bibliography:
+  references: bib.yaml
+  csl: apa