Gray, L. L. (1976). How we choose a President: The election year (4th ed.). St. Martin's Press.
Citación estilo ChicagoGray, Lee Learner. How We Choose a President: The Election Year. 4th ed. New York: St. Martin's Press, 1976.
Cita MLAGray, Lee Learner. How We Choose a President: The Election Year. 4th ed. St. Martin's Press, 1976.
Warning: These citations may not always be 100% accurate.