Cita APA

Steffen, R., DuPont, H. L., & Wilder-Smith, A. (2007). Manual of travel medicine and health (3rd ed.). BC Decker.

Citación estilo Chicago

Steffen, Robert, Herbert L. DuPont, and Annelies Wilder-Smith. Manual of Travel Medicine and Health. 3rd ed. Hamilton, Ont.: BC Decker, 2007.

Cita MLA

Steffen, Robert, et al. Manual of Travel Medicine and Health. 3rd ed. BC Decker, 2007.