APA aipamena

(2004). American government: 04/05. Boston: McGraw-Hill/ Dushkin.

Chicago Style aipamena

American Government: 04/05. Boston: McGraw-Hill/ Dushkin, 2004.

MLA aipamena

American Government: 04/05. Boston: McGraw-Hill/ Dushkin, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.