APA (7th ed.) Citation

Forman, G. E., & Sigel, I. E. (1979). Cognitive development: A life-span view. Brooks/Cole Pub. Co..

Chicago Style (17th ed.) Citation

Forman, George E., and Irving E. Sigel. Cognitive Development: A Life-span View. Monterey, Calif.: Brooks/Cole Pub. Co., 1979.

MLA (9th ed.) Citation

Forman, George E., and Irving E. Sigel. Cognitive Development: A Life-span View. Brooks/Cole Pub. Co., 1979.