Cita APA (7a ed.)

Bynum, W. F., & Porter, R. (1993). Companion encyclopedia of the history of medicine. Routledge.

Cita Chicago Style (17a ed.)

Bynum, W. F., y Roy Porter. Companion Encyclopedia of the History of Medicine. London ; New York: Routledge, 1993.

Cita MLA (9a ed.)

Bynum, W. F., y Roy Porter. Companion Encyclopedia of the History of Medicine. Routledge, 1993.