APA (7th ed.) Citation

Hollingworth, H. L. (1949). Psychology and ethics: A study of sense of obligation. Ronald Press.

Chicago Style (17th ed.) Citation

Hollingworth, Harry Levi. Psychology and Ethics: A Study of Sense of Obligation. New York: Ronald Press, 1949.

MLA (9th ed.) Citation

Hollingworth, Harry Levi. Psychology and Ethics: A Study of Sense of Obligation. Ronald Press, 1949.