APA (7th ed.) Citation

Lugo, J. O., & Hershey, G. L. (1979). Human development: A psychological, biological, and sociological approach to the life span (2d ed.). Macmillan.

Chicago Style (17th ed.) Citation

Lugo, James O., and Gerald L. Hershey. Human Development: A Psychological, Biological, and Sociological Approach to the Life Span. 2d ed. New York: Macmillan, 1979.

MLA (9th ed.) Citation

Lugo, James O., and Gerald L. Hershey. Human Development: A Psychological, Biological, and Sociological Approach to the Life Span. 2d ed. Macmillan, 1979.