Cita APA (7a ed.)

Jawetz, E., Welch, H., & Martí-Ibáñez, F. (1956). Polymyxin, neomycin, bacitracin. Medical Encyclopedia.

Cita Chicago Style (17a ed.)

Jawetz, Ernest, Henry Welch, y Félix Martí-Ibáñez. Polymyxin, Neomycin, Bacitracin. New York: Medical Encyclopedia, 1956.

Cita MLA (9a ed.)

Jawetz, Ernest, et al. Polymyxin, Neomycin, Bacitracin. Medical Encyclopedia, 1956.