Não informado. (2018). Reports and Collected Studies. Institute of Tropical Medicine and Hygiene of Porto Rico.
Chicago (17e ed.) BronvermeldingNão informado. Reports and Collected Studies. San Juan: Institute of Tropical Medicine and Hygiene of Porto Rico, 2018.
MLA (8e ed.) BronvermeldingNão informado. Reports and Collected Studies. Institute of Tropical Medicine and Hygiene of Porto Rico, 2018.
Let op: Deze citaties zijn niet altijd 100% accuraat.