Cita APA (7th ed.)

(1949). Pursuit of happiness: A primer for modern living. Spero Foundation.

Cita Chicago (17th ed.)

Pursuit of Happiness: A Primer for Modern Living. New York: Spero Foundation, 1949.

Cita MLA (8th ed.)

Pursuit of Happiness: A Primer for Modern Living. Spero Foundation, 1949.