Geography

The Writing Center at Purdue University has created the most widely used, comprehensive guides to citation available.

• APA Formatting and Style Guide (Purdue University, OWL)

• Chicago Formatting & Style Guide (Purdue University, OWL)

• Formatting in Sociology (ASA Style) (Purdue University, OWL)

• MLA Formatting and Style Guide (Purdue University, OWL)