Παραπομπή σε μορφή APA (7η εκδ.)

Não informado. (2007). Report of the director. University of Puerto Rico, School of Tropical Medicine.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Não informado. Report of the Director. San Juan: University of Puerto Rico, School of Tropical Medicine, 2007.

Παραπομπή σε μορφή MLA (8th εκδ.)

Não informado. Report of the Director. University of Puerto Rico, School of Tropical Medicine, 2007.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.