Cita APA (7th ed.)

Richards, B. (1959). The heart of a champion. Fleming H. Revell.

Cita Chicago (17th ed.)

Richards, Bob. The Heart of a Champion. Westwood: Fleming H. Revell, 1959.

Cita MLA (9th ed.)

Richards, Bob. The Heart of a Champion. Fleming H. Revell, 1959.