APA (7th ed.) Citation

Hepner, H. W. (1930). Psychology in modern business. Prentice-Hall.

Chicago Style (17th ed.) Citation

Hepner, Harry Walker. Psychology in Modern Business. New York: Prentice-Hall, 1930.

MLA (9th ed.) Citation

Hepner, Harry Walker. Psychology in Modern Business. Prentice-Hall, 1930.