APA (7th ed.) Citation

Thorpe, L. P. (1955). Child psychology and development (2d ed.). Ronald Press Co.

Chicago Style (17th ed.) Citation

Thorpe, Louis P. Child Psychology and Development. 2d ed. New York: Ronald Press Co, 1955.

MLA (9th ed.) Citation

Thorpe, Louis P. Child Psychology and Development. 2d ed. Ronald Press Co, 1955.