Cita APA (7a ed.)

Zahn, M. A., & Bencivengo, M. (1976). Violent death: A comparison between drug users and nondrug users.

Cita Chicago Style (17a ed.)

Zahn, Margaret A., y Mark Bencivengo. Violent Death: A Comparison Between Drug Users and Nondrug Users. Philadelphia, 1976.

Cita MLA (9a ed.)

Zahn, Margaret A., y Mark Bencivengo. Violent Death: A Comparison Between Drug Users and Nondrug Users. 1976.