Cita APA (7th ed.)

Schuller, R. H. (1978). Discover your possibilites. Ballantine Books.

Cita Chicago (17th ed.)

Schuller, Robert H. Discover Your Possibilites. New York: Ballantine Books, 1978.

Cita MLA (9th ed.)

Schuller, Robert H. Discover Your Possibilites. Ballantine Books, 1978.