APA (7th ed.) Citation

Zimring, F. E., & Hawkins, G. (1987). The citizen's guide to gun control. Macmillan [u.a.].

Chicago Style (17th ed.) Citation

Zimring, Franklin E., and Gordon Hawkins. The Citizen's Guide to Gun Control. New York, NY: Macmillan [u.a.], 1987.

MLA (9th ed.) Citation

Zimring, Franklin E., and Gordon Hawkins. The Citizen's Guide to Gun Control. Macmillan [u.a.], 1987.