Cita APA (7a ed.)

Annan, S. O., & Skogan, W. G. (1993). Drug enforcement in public housing: Signs of success in Denver. Police Foundation.

Cita Chicago Style (17a ed.)

Annan, Sampson O., y Wesley G. Skogan. Drug Enforcement in Public Housing: Signs of Success in Denver. [Washington, DC]: Police Foundation, 1993.

Cita MLA (9a ed.)

Annan, Sampson O., y Wesley G. Skogan. Drug Enforcement in Public Housing: Signs of Success in Denver. Police Foundation, 1993.