APA aipamena

Egger, R. (1972). The President of the United States (2d ed.). McGraw-Hill.

Chicago Style aipamena

Egger, Rowland. The President of the United States. 2d ed. New York: McGraw-Hill, 1972.

MLA aipamena

Egger, Rowland. The President of the United States. 2d ed. McGraw-Hill, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.