Cita APA (7a ed.)

Pennell, S., & Curtis, C. (1983). Juvenile violence and gang-related crime: San Diego, 1982. National Criminal Justice Reference Service.

Cita Chicago Style (17a ed.)

Pennell, Susan, y Christine Curtis. Juvenile Violence and Gang-related Crime: San Diego, 1982. Rockville, Md: National Criminal Justice Reference Service, 1983.

Cita MLA (9a ed.)

Pennell, Susan, y Christine Curtis. Juvenile Violence and Gang-related Crime: San Diego, 1982. National Criminal Justice Reference Service, 1983.