APA (7th ed.) Zitazioa

Saffell, D. C. (1984). The politics of American national governemnt. Little Brown.

Chicago Style (17th ed.) Zitazioa

Saffell, David C. The Politics of American National Governemnt. Boston; Toronto: Little Brown, 1984.

MLA (9th ed.) Zitazioa

Saffell, David C. The Politics of American National Governemnt. Little Brown, 1984.