Hawkins, G., & Zimring, F. E. (1988). Pornography in a free society. Cambridge University Press.
芝加哥风格引文Hawkins, Gordon, 与 Franklin E. Zimring. Pornography in a Free Society. Cambridge [England]: Cambridge University Press, 1988.
MLA引文Hawkins, Gordon, 与 Franklin E. Zimring. Pornography in a Free Society. Cambridge University Press, 1988.
警告：这些引文格式不一定是100％准确.