Dyfyniad APA

(1981). Contemporary issues in law enforcement. Sage Publications.

Dyfyniad Arddull Chicago

Contemporary Issues in Law Enforcement. Beverly Hills: Sage Publications, 1981.

Dyfyniad MLA

Contemporary Issues in Law Enforcement. Sage Publications, 1981.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.