APA Citation

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

MLA Citation

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

Warning: These citations may not always be 100% accurate.