Cite a book by an unknown author in the following format if you are adhering to Chicago style:
Title. City of Publication: Publisher, Year.
For example:
The Best Man in the American South. New York: Doubleday, 1997.
The title should appear in italics.
Cite a book by an unknown author in the following format if you are adhering to MLA style:
Title. City of Publication: Publisher, Year. Medium of Publication.
For example:
The Best Man in the American South. New York: Doubleday, 1997. Print.
The title should appear in italics.
Cite a book by an unknown author in the following format if you are adhering to APA style:
Title. (Year of Publication). City of Publication: Publisher.
For example:
The best man in the American south. (1997). New York: Doubleday.
The title should appear in italics. Also note that in APA style, the title of a book is capitalized differently than in MLA and Chicago style. Only the first word of the title should be capitalized, except for proper nouns, which should also be capitalized.