Cahill, K., & O`Brien, W. (1990). Tropical Medicine A Clinical Text.
Cita Chicago (17th ed.)Cahill, Kevin, i William O`Brien. Tropical Medicine A Clinical Text. 1990.
Cita MLA (9th ed.)Cahill, Kevin, i William O`Brien. Tropical Medicine A Clinical Text. 1990.
Atenció: Aquestes cites poden no estar 100% correctes.