APA (7th ed.) Citation

McLeish, J., Matheson, W., & Park, J. (1973). The psychology of the learning group. Hutchinson.

Chicago Style (17th ed.) Citation

McLeish, John, Wayne Matheson, and James Park. The Psychology of the Learning Group. London: Hutchinson, 1973.

MLA (9th ed.) Citation

McLeish, John, et al. The Psychology of the Learning Group. Hutchinson, 1973.