When you write a research paper, you will be including information from outside sources such as books, journals, magazines, web pages, etc. Whenever information from an outside source is utilized in your paper you must cite that source within your paper and include a full citation at the end of the paper on the "Reference Lists" page. Citing your sources gives credit to the creator of the original work.
Different academic subjects use different citation styles and formats. APA style is developed by the American Psychological Association and is used primarily in the social sciences. It is important that you consult your course syllabus or instructor to confirm what citation style is required for your paper.
This guide provides a brief introduction to APA style and includes a sample of the different kinds of citations that you might encounter while writing your research paper.