APA (7th ed.) Citation

Zimbardo, P. G., & Radl, S. L. (1981). The shy child: A parent's guide to preventing and overcoming shyness from infancy to adulthood. McGraw-Hill.

Chicago Style (17th ed.) Citation

Zimbardo, Philip G., and Shirley L. Radl. The Shy Child: A Parent's Guide to Preventing and Overcoming Shyness from Infancy to Adulthood. New York u.a: McGraw-Hill, 1981.

MLA (9th ed.) Citation

Zimbardo, Philip G., and Shirley L. Radl. The Shy Child: A Parent's Guide to Preventing and Overcoming Shyness from Infancy to Adulthood. McGraw-Hill, 1981.