APA (7th ed.) Citation

Gruber, H. E. (1962). Contemporary approaches to creative thinking: A symposium held at the University of Colorado. Atherton Press.

Chicago Style (17th ed.) Citation

Gruber, Howard E. Contemporary Approaches to Creative Thinking: A Symposium Held at the University of Colorado. New York: Atherton Press, 1962.

MLA (9th ed.) Citation

Gruber, Howard E. Contemporary Approaches to Creative Thinking: A Symposium Held at the University of Colorado. Atherton Press, 1962.