Cita APA (7a ed.)

Sonkin, D. J., & Durphy, M. (1989). Learning to live without violence: A handbook for men (updated.). Volcano Pr.

Cita Chicago Style (17a ed.)

Sonkin, Daniel J., y Michael Durphy. Learning to Live Without Violence: A Handbook for Men. updated. Volcano, Calif: Volcano Pr, 1989.

Cita MLA (9a ed.)

Sonkin, Daniel J., y Michael Durphy. Learning to Live Without Violence: A Handbook for Men. updated. Volcano Pr, 1989.