APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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