Cita APA (7a ed.)

Pohl, F., & Kornbluth, C. M. (1956). Presidential year. Ballantine.

Cita Chicago Style (17a ed.)

Pohl, Frederik, y C. M. Kornbluth. Presidential Year. New York: Ballantine, 1956.

Cita MLA (9a ed.)

Pohl, Frederik, y C. M. Kornbluth. Presidential Year. Ballantine, 1956.