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Mechanical Engineering

What is it?

American Psychological Association (APA) is most commonly used to write papers and cite sources within the sciences and social sciences.

**If you are not sure which citation style to use, please ask your instructor.

 The purpose of documentation is to:

  • Identify (cite) other people’s ideas and information used within your essay, assignment or paper.
  • Indicate the authors or sources of these in a References list at the end of your paper.

This guide is based on the APA Manual (6th ed.) that was published in 2009.


APA Updates: What's New in the 6th Edition?

APA recently published a new edition of their Publication Manual

Some of the changes include:

  • no longer include retrieval date unless source information may change over time
  • expanded coverage of online resources

To learn more about the changes made in the new edition, check out the "What's New" section on the official APA Website.

**The American Psychological Association has recently issued Corrections to the First Printing of the Publication Manual, Sixth Edition (July 2009).


Sections of this guide and examples have been used/adapted with the permission of Seneca College Libraries. For information, please contact Seneca college library. Note: When copying this guide, please retain this box.