Tolle, E. (2010). The power of now: A guide to spiritual enlightenment.
Cita Chicago Style (17a ed.)Tolle, Eckhart. The Power of Now: A Guide to Spiritual Enlightenment. 2010.
Cita MLA (8a ed.)Tolle, Eckhart. The Power of Now: A Guide to Spiritual Enlightenment. 2010.
Precaución: Estas citas no son 100% exactas.