APA (7th ed.) Citation

Ellis, B. E. (1991). American psycho (First edition paperback.). Vintage Books.

Chicago Style (17th ed.) Citation

Ellis, Bret Easton. American Psycho. First edition paperback. New York: Vintage Books, 1991.

MLA (8th ed.) Citation

Ellis, Bret Easton. American Psycho. First edition paperback. Vintage Books, 1991.

Warning: These citations may not always be 100% accurate.