Não informado. (2007). Report of the director. University of Puerto Rico, School of Tropical Medicine.
Cita Chicago Style (17a ed.)Não informado. Report of the Director. San Juan: University of Puerto Rico, School of Tropical Medicine, 2007.
Cita MLA (8a ed.)Não informado. Report of the Director. University of Puerto Rico, School of Tropical Medicine, 2007.
Precaución: Estas citas no son 100% exactas.