Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Hawkins, Gordon, i Franklin E. Zimring. Pornography in a Free Society. Cambridge [England]: Cambridge University Press, 1988.

Cita MLA (9th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.