APA (7th ed.) Citation

Koff, R. M. (1961). How does it work? Doubleday.

Chicago Style (17th ed.) Citation

Koff, Richard M. How Does It Work? Garden City, N.Y.: Doubleday, 1961.

MLA (9th ed.) Citation

Koff, Richard M. How Does It Work? Doubleday, 1961.

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