APA (7th ed.) Citation

Marshall, S. A., & Ruedy, J. (1993). On call: Principles and protocols (2nd ed.). W. B. Saunders.

Chicago Style (17th ed.) Citation

Marshall, Shane A., and John Ruedy. On Call: Principles and Protocols. 2nd ed. Philadelphia ; London: W. B. Saunders, 1993.

MLA (9th ed.) Citation

Marshall, Shane A., and John Ruedy. On Call: Principles and Protocols. 2nd ed. W. B. Saunders, 1993.