APA (7th ed.) Citation

Underwood, S. G. (2003). Gay men and anal eroticism: Tops, bottoms, and versatiles. Harrington Park Press.

Chicago Style (17th ed.) Citation

Underwood, Steven G. Gay Men and Anal Eroticism: Tops, Bottoms, and Versatiles. New York: Harrington Park Press, 2003.

MLA (9th ed.) Citation

Underwood, Steven G. Gay Men and Anal Eroticism: Tops, Bottoms, and Versatiles. Harrington Park Press, 2003.