Frank Barron. "Psychology of the Imagination." Scientific American. vol. 199. Sept. 1958.
2.
Laurence S. Kubie.Neurotic Distortion of the Creative Process. 1958. Paperbook , N.Y., N.Y.: Noonday Press. 1961.
3.
Roy Heath.The Reasonable Adventurer. Pittsburgh, Pa.: University of Pittsburgh Press. 1964. With a foreword by David Riesman. The price of this paperback is one dollar.
4.
DavidYount Review of Heath's Reasonable Adventurer. Saturday Review. Aug. 15, 1964. pp 65-66.
