Cita APA (7a ed.)

Edited by Porter , R. (1993). Companion encyclopedia of the history of: Medicine. Routledge.

Cita Chicago Style (17a ed.)

Edited by Porter , Roy. Companion Encyclopedia of the History of: Medicine. London: Routledge, 1993.

Cita MLA (9a ed.)

Edited by Porter , Roy. Companion Encyclopedia of the History of: Medicine. Routledge, 1993.