APA (7th ed.) Citation

Krug, R. S., & Cass, A. R. (1995). Behavioral Sciences (Fourth edition.). Springer New York.

Chicago Style (17th ed.) Citation

Krug, Ronald S., and Alvah R. Cass. Behavioral Sciences. Fourth edition. New York, NY: Springer New York, 1995.

MLA (9th ed.) Citation

Krug, Ronald S., and Alvah R. Cass. Behavioral Sciences. Fourth edition. Springer New York, 1995.