APA

Ketchum R. M., . (1955). What is democracy?. New York: Dutton.

Chicago

Ketchum Richard M, . 1955. What is democracy?. New York: Dutton.

Harvard

Ketchum R. M., . (1955). What is democracy?. New York: Dutton.

MLA

Ketchum Richard M, . What is democracy?. New York: Dutton. 1955.