Gaya APA

Shrreard, R, H. et al (1996). The centurions' shield : a history of the los angeles police department, its badges and insignia . United States of America: RHS Interprises.

Gaya MLA

Shrreard, Raymon, H. et al. "The centurions' shield : a history of the los angeles police department, its badges and insignia". United States of America: RHS Interprises, 1996. Text.