The most common formats for bibliographies found in academic books are APA and MLA. The Chicago style annotation is also a popular choice among academic writers.
Most annotations are done in MLA or APA formats, which are quite similar. In this citation, punctuation and text effects such as italics are important. An example of an MLA is citation is as follows: Lamott, Anne. Bird by Bird: Some Instructions on Writing and Life. New York: Anchor Books, 1995. Print.
APA citations are commonly used in scientific literature. A properly cited APA format bibliographic entry looks similar to this: Bernstein, M. (2002). 10 tips on writing the living Web. A List Apart: For People Who Make Websites, 149. Retrieved from http://www.alistapart.com/articles/writeliving
Though Chicago style is not used as commonly as a APA or MLA style, it is still an acceptable format for academic writing. The following is an example of a Chicago style bibliography entry: Michael Pollan, The Omnivore’s Dilemma: A Natural History of Four Meals (New York: Penguin, 2006), 99–100.
Each bibliographic styles follow a specific set of formatting rules. For example, entries in MLA and APA formats should be listed with hanging indents. Furthermore, entries in all three style should be organized in alphabetical order based on the writer's name.