Cita APA (7th ed.)

Steffen, R., & DuPont, H. L. (1999). Manual of travel medicine and health. B.C. Decker.

Cita Chicago (17th ed.)

Steffen, Robert, i Herbert L. DuPont. Manual of Travel Medicine and Health. Hamilton, Ontario: B.C. Decker, 1999.

Cita MLA (8th ed.)

Steffen, Robert, i Herbert L. DuPont. Manual of Travel Medicine and Health. B.C. Decker, 1999.