Cita APA (7a ed.)

Hawkins, G., & Zimring, F. E. (1988). Pornography in a free society (1. publ.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Hawkins, Gordon, y Franklin E. Zimring. Pornography in a Free Society. 1. publ. Cambridge u.a: Cambridge University Press, 1988.

Cita MLA (9a ed.)

Hawkins, Gordon, y Franklin E. Zimring. Pornography in a Free Society. 1. publ. Cambridge University Press, 1988.