Tolle, E. (2001). The power of now: A guide to spiritual enlightenment. Yogi Impression.
芝加哥风格引文Tolle, Eckhart. The Power of Now: A Guide to Spiritual Enlightenment. Mumbai: Yogi Impression, 2001.
MLA引文Tolle, Eckhart. The Power of Now: A Guide to Spiritual Enlightenment. Yogi Impression, 2001.
警告：这些引文格式不一定是100％准确.