MLA: MLA is used primarily in English, philosophy, religion, and most areas in the humanities. The MLA 8th Edition includes many changes in the way we cite our sources. Here are sites that should help you walk through the process:
APA: APA citation is used primarily in psychology, science, and some social science publishing. Here are a few resources that should help you with APA citations.
Citation Tools: If you choose to use a citation tool, make sure you're using either MLA 8 or APA, depending on your teacher's requirements. No citation tool is perfect. Please double check what the tool spits out to make sure that it creates a correct citation.