Não informado. (2007). Report of the director. University of Puerto Rico, School of Tropical Medicine.
Chicagoスタイル(17版)引用形式Não informado. Report of the Director. San Juan: University of Puerto Rico, School of Tropical Medicine, 2007.
MLA(8版)引用形式Não informado. Report of the Director. University of Puerto Rico, School of Tropical Medicine, 2007.
警告: この引用は必ずしも正確ではありません.