@book{243031,
	author = {Wilhelm, Hellmut, and Wilhelm, Richard,},
	title = {Understanding the I ching :},
	publisher = {Princeton University Press,},
	year = {1995},
	series = {Bollingen series ;},
	address = {Princeton, N.J. :},
	note = {Originally published separately as: Change : eight lectures on the I ching / by Hellmut Wilhelm ; translated from the German by Cary F. Baynes; and Lectures on the I ching : constancy and chang / by Richard Wilhelm ; translated from the German by Irene Eber. New York : Bollingen Foundation, c1960.}
}