APA (7th ed.) Citation

Schaefer, C. E., & DiGeronimo, T. F. (2000). Ages and stages: A parent's guide to nomal childhood development. John Wiley & Sons, Inc..

Chicago Style (17th ed.) Citation

Schaefer, Charles E., and Theresa Foy DiGeronimo. Ages and Stages: A Parent's Guide to Nomal Childhood Development. New York: John Wiley & Sons, Inc., 2000.

MLA (9th ed.) Citation

Schaefer, Charles E., and Theresa Foy DiGeronimo. Ages and Stages: A Parent's Guide to Nomal Childhood Development. John Wiley & Sons, Inc., 2000.