APA (7e ed.) Bronvermelding

Não informado. (1926). Collected papers. University of Puerto Rico, School of Tropical Medicine.

Chicago (17e ed.) Bronvermelding

Não informado. Collected Papers. San Juan: University of Puerto Rico, School of Tropical Medicine, 1926.

MLA (8e ed.) Bronvermelding

Não informado. Collected Papers. University of Puerto Rico, School of Tropical Medicine, 1926.

Let op: Deze citaties zijn niet altijd 100% accuraat.