Cita APA (7a ed.)

Collins, H. C. (1979). Street gangs: Profiles for police. Police Dept. Publ.

Cita Chicago Style (17a ed.)

Collins, H. C. Street Gangs: Profiles for Police. City of New York: Police Dept. Publ, 1979.

Cita MLA (9a ed.)

Collins, H. C. Street Gangs: Profiles for Police. Police Dept. Publ, 1979.