APA ציטוט

Schaie, K. W., & Willis, S. L. (1996). Adult development and aging (4th ed.). HarperCollins College Publishers.

Chicago Style (17th ed.) Citation

Schaie, K. Warner, and Sherry L. Willis. Adult Development and Aging. 4th ed. New York: HarperCollins College Publishers, 1996.

ציטוט MLA

Schaie, K. Warner, and Sherry L. Willis. Adult Development and Aging. 4th ed. HarperCollins College Publishers, 1996.