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.
You can also generate citations for search results in most databases, or by using the FindIt@CMU link or Google Scholar.