APA (7th ed.) Citation

Montagu, A. (1955). The direction of human development: Biological and social bases ([1st ed.].). Harper.

Chicago Style (17th ed.) Citation

Montagu, Ashley. The Direction of Human Development: Biological and Social Bases. [1st ed.]. New York: Harper, 1955.

MLA (9th ed.) Citation

Montagu, Ashley. The Direction of Human Development: Biological and Social Bases. [1st ed.]. Harper, 1955.