Lua APA (7ú heag.)

Walker, S. (1992). The police in America: An introduction (2nd ed.). McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Walker, Samuel. The Police in America: An Introduction. 2nd ed. New York: McGraw-Hill, 1992.

Lua MLA (8ú heag.)

Walker, Samuel. The Police in America: An Introduction. 2nd ed. McGraw-Hill, 1992.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.