APA (7th ed.) Citation

Spain, A. O. (1951). The political theory of John C. Calhoun. Bookman Associates.

Chicago Style (17th ed.) Citation

Spain, August O. The Political Theory of John C. Calhoun. New York: Bookman Associates, 1951.

MLA (9th ed.) Citation

Spain, August O. The Political Theory of John C. Calhoun. Bookman Associates, 1951.