APA (7th ed.) Zitazioa

Willis,. (1981). Western civilization: An urban perspective (3rd ed.). D.C. Heath.

Chicago Style (17th ed.) Zitazioa

Willis. Western Civilization: An Urban Perspective. 3rd ed. Lexington: D.C. Heath, 1981.

MLA (9th ed.) Zitazioa

Willis. Western Civilization: An Urban Perspective. 3rd ed. D.C. Heath, 1981.