Cita APA (7a ed.)

Fosdick, R. B. (1969). American police systems Patterson Smith reprint series in criminology, law enforcement, and social problems.

Cita Chicago Style (17a ed.)

Fosdick, Raymond B. "American Police Systems." Patterson Smith Reprint Series in Criminology, Law Enforcement, and Social Problems 1969.

Cita MLA (8a ed.)

Fosdick, Raymond B. "American Police Systems." Patterson Smith Reprint Series in Criminology, Law Enforcement, and Social Problems, 1969.