APA (7th ed.) Citation

Krug, R. S., & Cass, A. R. (1992). Behavioral Sciences (Third edition.). Springer US.

Chicago Style (17th ed.) Citation

Krug, Ronald S., and Alvah R. Cass. Behavioral Sciences. Third edition. New York, NY: Springer US, 1992.

MLA (9th ed.) Citation

Krug, Ronald S., and Alvah R. Cass. Behavioral Sciences. Third edition. Springer US, 1992.