"The Creative Process" by James A. Baldwin originally published in The National Culture Center's "Creative America", 1962, and later published in James A. Baldwin "The Price of the Ticket", 1985.
Shakti Gawain (2015). “The Shakti Gawain Essentials: 3 Books in 1: Creative Visualization, Living in the Light & Developing Intuition”, p.205, Mango Media Inc.