Wilber, K. (2000). A brief history of everything (Second edition.). Shambhala.
Cita Chicago (17th ed.)Wilber, Ken. A Brief History of Everything. Second edition. Boston: Shambhala, 2000.
Cita MLA (9th ed.)Wilber, Ken. A Brief History of Everything. Second edition. Shambhala, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.