Cita APA (7th ed.)
American journal of hygiene [Am J Hyg] NLMUID: 7910859.
Cita Chicago (17th ed.)
American Journal of Hygiene [Am J Hyg] NLMUID: 7910859.
Cita MLA (9th ed.)
American Journal of Hygiene [Am J Hyg] NLMUID: 7910859.
Atenció: Aquestes cites poden no estar 100% correctes.