APA (7th ed.) Citation

Corwin, E. S., & Koenig, L. W. (1956). The presidency today. Univ. Press.

Chicago Style (17th ed.) Citation

Corwin, Edward Samuel, and Louis W. Koenig. The Presidency Today. New York: Univ. Press, 1956.

MLA (9th ed.) Citation

Corwin, Edward Samuel, and Louis W. Koenig. The Presidency Today. Univ. Press, 1956.

Warning: These citations may not always be 100% accurate.