Não informado. (1926). Collected papers. University of Puerto Rico, School of Tropical Medicine.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Collected Papers. San Juan: University of Puerto Rico, School of Tropical Medicine, 1926.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Collected Papers. University of Puerto Rico, School of Tropical Medicine, 1926.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.