Tolle, E. (2002). Practicing the power of now: Essential teachings....from the power of now. Yogi Impression.
芝加哥风格引文Tolle, Eckhart. Practicing the Power of Now: Essential Teachings....from the Power of Now. Mumbai: Yogi Impression, 2002.
MLA引文Tolle, Eckhart. Practicing the Power of Now: Essential Teachings....from the Power of Now. Yogi Impression, 2002.
警告：这些引文格式不一定是100％准确.