APA (7th ed.) Citation

James, W. (1977). The principles of psychology. Encyclopaedia Britannica.

Chicago Style (17th ed.) Citation

James, William. The Principles of Psychology. Chicago: Encyclopaedia Britannica, 1977.

MLA (8th ed.) Citation

James, William. The Principles of Psychology. Encyclopaedia Britannica, 1977.

Warning: These citations may not always be 100% accurate.