Chapter 6: Synchronistic Wisdom of the I Ching
Henderson, Joseph L. "A Commentary on the Book of Changes, the I Ching." Psychic 3, no. 2 (September-October 1971): pp. 9-12, 46.
Holy Bible. Revised Standard Version. New York: Nelson, 1973, Ecclesiastes 3:1–2.
The I Ching or Book of Changes. Translated by Richard Wilhelm and Gary F. Baynes. Bollingen Series XIX. Princeton, N. J.: Princeton University Press, 1950.
Jung, C. G. "Foreword to the I Ching, Wilhelm-Baynes translation." Bollingen Series XIX. Princeton, N. J.: Princeton University Press. 1950.