In the college setting, any academic paper that uses outside sources will require some form of citation. A citation is a reference to another source of information. The two most common citation styles are Modern Language Association (MLA) and American Psychological Association (APA). These two are the most commonly used formats in the First Year Writing Program at EMU, but other citation styles, such as Chicago and Council of Science Editors (CSE), may be required in other classes. Usually professors will make their preference clear, but if not this Wiki page will provide a brief overview of both citation styles to help you determine which best suits your paper.