APA (7th ed.) Citation

James, W. (1950). The principles of psychology (Authorized ed., unabridged.). Dover Publications.

Chicago Style (17th ed.) Citation

James, William. The Principles of Psychology. Authorized ed., unabridged. New York: Dover Publications, 1950.

MLA (9th ed.) Citation

James, William. The Principles of Psychology. Authorized ed., unabridged. Dover Publications, 1950.