Academic research requires that you acknowledge the sources you've used in your paper. This is done through in-text citations and by creating a list of references at the end of your paper. You must cite any information and ideas that are not your own. Failure to do this could result in your being accused of plagiarism.
The links below provide specific examples of how to cite sources and prepare a document according to the 6th Edition (2009) of the Publication Manual of the American Psychological Association.
The links below are to citation generators. These are sites that allow you to add citation information to a form and submit it, and then receive a properly formatted citation in the style of your choosing. They work for APA, MLA, and other major citation styles.
NOTE: Be sure to check the references generated by these tools against a style manual or other credible source.