APA (7th ed.) Zitazioa

Riker, W. H. (1965). Democracy in the United state. Macmillan.

Chicago Style (17th ed.) Zitazioa

Riker, William H. Democracy in the United State. New York: Macmillan, 1965.

MLA (9th ed.) Zitazioa

Riker, William H. Democracy in the United State. Macmillan, 1965.