Cita APA (7th ed.)

Robbins, A. (1988). Unlimited power: The new science of personal achievament. Simon and schuster.

Cita Chicago (17th ed.)

Robbins, Anthony. Unlimited Power: The New Science of Personal Achievament. London: Simon and schuster, 1988.

Cita MLA (9th ed.)

Robbins, Anthony. Unlimited Power: The New Science of Personal Achievament. Simon and schuster, 1988.