APA (7th ed.) Citation

Pillsburg, W. B. (1930). The essentials of psychology (3d ed.). Macmillan Company.

Chicago Style (17th ed.) Citation

Pillsburg, W. B. The Essentials of Psychology. 3d ed. New York: Macmillan Company, 1930.

MLA (8th ed.) Citation

Pillsburg, W. B. The Essentials of Psychology. 3d ed. Macmillan Company, 1930.