Tutorial - APA Citation Style  - Citations are a critical part of the research process:

• Citations credit the author of the original work who provided you with the information or idea
• Citations allow your audience to identify and find the source material in order to learn more about your topic
• Citations give your paper more credibility because it shows you're supporting your arguments with high-quality sources
• Citations help you avoid plagiarism & demonstrate your integrity as a responsible researcher and participant in your field of study

APA Web Guide from the OWL at Purdue  

Citation Fox
Contains templates and examples for over 500 different resource types, sorted by type of resource (book, journal article, etc.)  Provided by the University Libraries at University at Albany SUNY

The Theory List: Theories Covered in the 10th Edition of your textbook, Communication: A First Look at Communication Theory.

A list of Communication Theories, clustered by topic, with definitions, history, core assumptions, and lists of key references, maintained by The University of Twente in the Netherlands. Connect to Communication Theory Clusters

What is a Literature Review?

An overview of the significant literature published on a topic. Rather than evaluating each source separately, a lit review is written in essay form, and explains how each work is similar to and how it varies from the others.

For more detailed information, see How to Write a Literature Review.

What is an Annotated Bibliography?

An Annotated Bibliography is a list of all the sources you are going to use to write your paper. "Annotations" are short paragraphs that describe and evaluate each one of those sources separately. 

For more detailed information, see Write an Annotated Bibliography.