Citazione Stile APA (7a Edizione)

Tolle, E. (2005). The Power of Now: A Guide to Spiritual Enlightenment. New World Library.

Citazione stile Chigago Style (17a edizione)

Tolle, Eckhart. The Power of Now: A Guide to Spiritual Enlightenment. Calif: New World Library, 2005.

Citatione MLA (9a ed.)

Tolle, Eckhart. The Power of Now: A Guide to Spiritual Enlightenment. New World Library, 2005.