APA (7th ed.) Citation

Simmons, D. A. (1972). Medical and hospital control systems: The critical difference. Little, Brown.

Chicago Style (17th ed.) Citation

Simmons, David A. Medical and Hospital Control Systems: The Critical Difference. Boston: Little, Brown, 1972.

MLA (9th ed.) Citation

Simmons, David A. Medical and Hospital Control Systems: The Critical Difference. Little, Brown, 1972.