Cita APA (7th ed.)

Whitworth, W. A. (1959). Choice and chance, with one thousand exercises (5th ed., much enl.). Hafner.

Cita Chicago (17th ed.)

Whitworth, William Allen. Choice and Chance, with One Thousand Exercises. 5th ed., much enl. New York: Hafner, 1959.

Cita MLA (9th ed.)

Whitworth, William Allen. Choice and Chance, with One Thousand Exercises. 5th ed., much enl. Hafner, 1959.