APA (7th ed.) Citation

Tolle, E. (1997). 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, CA: New World Library, 1997.

MLA (9th ed.) Citation

Tolle, Eckhart. The Power of NOW: A Guide to Spiritual Enlightenment. New World Library, 1997.