APA (7th ed.) Citation

Tolle, E. (1999). The power of now: A guide to spiritual enlightenment. New World Library.

Chicago Style (17th ed.) Citation

Tolle, Eckhart. The Power of Now: A Guide to Spiritual Enlightenment. Novato, Calif.: New World Library, 1999.

MLA (8th ed.) Citation

Tolle, Eckhart. The Power of Now: A Guide to Spiritual Enlightenment. New World Library, 1999.

Warning: These citations may not always be 100% accurate.