APA (7th ed.) Citation

Crane, G. W., Crane, D. B., & Crane, D. G. (1960). Psychology applied. Hopkins.

Chicago Style (17th ed.) Citation

Crane, George W., Daniel B. Crane, and David G. Crane. Psychology Applied. Chicago: Hopkins, 1960.

MLA (9th ed.) Citation

Crane, George W., et al. Psychology Applied. Hopkins, 1960.