APA (7th ed.) Citation

Willows, D. M., & Houghton, H. A. (1987). The psychology of illustration. Springer.

Chicago Style (17th ed.) Citation

Willows, Dale M., and Harvey A. Houghton. The Psychology of Illustration. New York [etc.]: Springer, 1987.

MLA (9th ed.) Citation

Willows, Dale M., and Harvey A. Houghton. The Psychology of Illustration. Springer, 1987.