APA (7th ed.) Citation

O'NEILL, HAMMER, & Steinberg. (1989). Police officer. Prentice Hall.

Chicago Style (17th ed.) Citation

O'NEILL, HAMMER, and Steinberg. Police Officer. New York: Prentice Hall, 1989.

MLA (8th ed.) Citation

O'NEILL, et al. Police Officer. Prentice Hall, 1989.

Warning: These citations may not always be 100% accurate.