APA (7th ed.) Citation

Willey, R. d. V. (1960). Guidance in elementary education (Rev. ed.). Harper.

Chicago Style (17th ed.) Citation

Willey, Roy de Verl. Guidance in Elementary Education. Rev. ed. New York: Harper, 1960.

MLA (9th ed.) Citation

Willey, Roy de Verl. Guidance in Elementary Education. Rev. ed. Harper, 1960.