APA-referens

Walker, S., & Katz, C. M. (2005). The police in America: An introduction (5th ed.). New York: McGraw-Hill.

Chicago-stil citat

Walker, Samuel, and Charles M. Katz. The Police in America: An Introduction. 5th ed. New York: McGraw-Hill, 2005.

MLA-referens

Walker, Samuel, and Charles M. Katz. The Police in America: An Introduction. 5th ed. New York: McGraw-Hill, 2005.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.