APA (7th ed.) Citation

Thomas, G. V., & Silk, A. M. J. (1990). An introduction to the psychology of children's drawings. Harvester Wheatsheaf.

Chicago Style (17th ed.) Citation

Thomas, Glyn V., and Angele M. J. Silk. An Introduction to the Psychology of Children's Drawings. New York: Harvester Wheatsheaf, 1990.

MLA (9th ed.) Citation

Thomas, Glyn V., and Angele M. J. Silk. An Introduction to the Psychology of Children's Drawings. Harvester Wheatsheaf, 1990.