Gaya APA

Hess, K, M., Orthmann, C, H. (2012). Management & Supervision in Law Enforcement (Sixth Edition). New York: Delmar Cengage Learning.

Gaya MLA

Hess, Kären, Matison., Orthmann, Christine, Hess. "Management & Supervision in Law Enforcement". Sixth Edition New York: Delmar Cengage Learning, 2012. Art Original.