APA (7th ed.) Citation

Mussen, P. H., Congre, J. J., & Kagan, J. (1979). Psychological development: A life-span approach. Harper & Row, Publishers.

Chicago Style (17th ed.) Citation

Mussen, Paul Henry, John Janeway Congre, and Jerome Kagan. Psychological Development: A Life-span Approach. New York, NY: Harper & Row, Publishers, 1979.

MLA (9th ed.) Citation

Mussen, Paul Henry, et al. Psychological Development: A Life-span Approach. Harper & Row, Publishers, 1979.