APA (7th ed.) Citation

Hoag, C. G. (1914). A theory of interest. The Macmillan company.

Chicago Style (17th ed.) Citation

Hoag, Clarence Gilbert. A Theory of Interest. New York: The Macmillan company, 1914.

MLA (9th ed.) Citation

Hoag, Clarence Gilbert. A Theory of Interest. The Macmillan company, 1914.

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