Robbins, A. (1988). Unlimited power: The new science of personal achievament. Simon and schuster.
Lua i Stíl Chicago (17ú heag.)Robbins, Anthony. Unlimited Power: The New Science of Personal Achievament. London: Simon and schuster, 1988.
Lua MLA (9ú heag.)Robbins, Anthony. Unlimited Power: The New Science of Personal Achievament. Simon and schuster, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.