Cite using MLA style by stating the author (usually the narrator but it can be the main creator) of the documentary and the name of the film in the text of the paper. For example: "Rejoice and Shout" is a gospel documentary by Don McGlynn.
Cite a documentary in APA format using the same rules as MLA style. Cite the documentary within the paper's text.
Cite in-text with Chicago style by using footnotes. The footnote needs the title of the documentary (in italics), the format, the director, the place of production, the studio that produced it and the year it was released. For example: The Cove, DVD, directed by Louie Psihoyos (Australia: Lionsgate, 2009).