The Pluralism Project at Harvard University

Crawford, Sandy. "The New England Center of Tao: A Preliminary Study." Pluralism Project Research, 1991.

Kohn, Livia, ed. Taoist Meditation and Longevity Techniques. Ann Arbor: Center for Chinese Studies, University of Michigan, 1989.

Liu Xiaogan, "Taoism" in Arvind Sharma, ed. Our Religions. San Francisco: Harper SanFrancisco, 1993.

Red Pine (Bill Porter). Lao-tzu's Taoteching. San Francisco: Mercury House, 1996.

Waley, Arthur. Three Ways of Thought in Ancient China. London: Allen and Unwin, 1939.

Watson, Burton, tr. The Complete Works of Chuang-tzu. New York: Columbia University Press, 1968.

Welch, Holmes. Taoism, the Parting of the Way. Boston: Beacon Press, 1966.

Wing-tsit Chan, tr. The Way of Lao Tzu. Indianapolis: Bobbs-Merrill Company, 1963.