APA (7th ed.) Citation

Shaffer, B., & Krug, R. S. (1993). Psychiatry. Springer US.

Chicago Style (17th ed.) Citation

Shaffer, Blaine, and Ronald S. Krug. Psychiatry. New York, NY: Springer US, 1993.

MLA (9th ed.) Citation

Shaffer, Blaine, and Ronald S. Krug. Psychiatry. Springer US, 1993.