Não informado. (2018). Reports and Collected Studies. Institute of Tropical Medicine and Hygiene of Porto Rico.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Reports and Collected Studies. San Juan: Institute of Tropical Medicine and Hygiene of Porto Rico, 2018.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Reports and Collected Studies. Institute of Tropical Medicine and Hygiene of Porto Rico, 2018.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.