Gray, L. L. (1964). How we choose a president: The election year. St Martin's Press.
Cita Chicago Style (17a ed.)Gray, Lee Learner. How We Choose a President: The Election Year. New York: St Martin's Press, 1964.
Cita MLA (9a ed.)Gray, Lee Learner. How We Choose a President: The Election Year. St Martin's Press, 1964.
Precaución: Estas citas no son 100% exactas.