Cita APA (7th ed.)

Riker, W. H. (1965). Democracy in the United States (2nd ed.). Macmillan.

Cita Chicago (17th ed.)

Riker, William H. Democracy in the United States. 2nd ed. New York: Macmillan, 1965.

Cita MLA (8th ed.)

Riker, William H. Democracy in the United States. 2nd ed. Macmillan, 1965.