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APA Style is from the American Psychological Association. It is a very widely used style in the social sciences--not just in psychology. It is probably the most commonly used style on campus.
Post-traumatic stress disorder treatment. Virtual reality simulator being used by the US military to help with the treatment of post-traumatic stress disorder (PTSD).
Post-traumatic stress disorder treatment. Photography. Britannica ImageQuest. Encyclopædia Britannica, Inc., 25 May 2016.
http://quest.eb.com/search/132_1311114/1/132_1311114/cite. Accessed 24 Aug 2016.
Guides at Preston Library
APA Formatting and Style Guide
For an online guide to APA style, try this, from The Online Writing Lab (The OWL) at Purdue University. It covers all aspects of APA formatting (6th ed.), including the paper itself and references.
How to Cite Something You Found on a Website in APA Style
The "official" statement from APA itself on how to cite a Web site!
Covers all aspects of creating a paper using APA formatting (6th ed.), citations, and reference list. Also provides help with grammar and punctuation. From the University of Wisconsin-Madison.
APA Style Blog
Moderated by the APA itself, you can use the search feature to find answers to your APA style questions. It's especially helpful for unusual situations.
Cite the Mental Measurements Yearbook-Tests in Print
Clearly shows how to cite APA references to reviews in Mental Measurements Yearbook and Tests in Print. From Bloomsburg University.
Frequently Asked Questions About APA Style
Use this list of common questions about references, punctuation, grammar, and style to get official answers directly from the American Psychological Association itself. For help with specific citation examples, use one of the other sites.
The Basics of APA Style
This tutorial is designed for those who have no previous knowledge of APA Style. Structure and format work, reduce bias in language, avoid charges of plagiarism, cite references in text, and provides selected reference examples.