This document discusses three main styles of writing used in research: MLA, APA, and Chicago/Turabian. It provides details on the origins and guidelines of each style. For MLA, it describes how MLA began and its focus on literature and language. It provides an example of an MLA formatted paper. For APA, it discusses how APA developed its uniform style and how education institutions commonly use it. It also provides an example APA formatted paper. Finally, it describes how the Chicago Manual of Style and Turabian manual relate and differ, particularly regarding footnotes, and provides an example of a Chicago/Turabian formatted paper.