APA (7th ed.) Citation

Ostrom, E., Parks, R. B., & Whitaker, G. P. (1978). Patterns of metropolitan policing. Ballinger.

Chicago Style (17th ed.) Citation

Ostrom, Elinor, Roger B. Parks, and Gordon P. Whitaker. Patterns of Metropolitan Policing. Cambridge, Mass: Ballinger, 1978.

MLA (9th ed.) Citation

Ostrom, Elinor, et al. Patterns of Metropolitan Policing. Ballinger, 1978.