1. Décimo congreso internacional de medicina y farmacia militares: Washington, D.C. : 7 al 15 de mayo de 1939 Author(s): International Congress of Military Medicine and Pharmacy 1939 : Washington, D.C.) author. Publication: [Washington, D.C.] : United States Government Printing Office, [1939] Subject(s): Military MedicineTechnology, Pharmaceutical
2. Mapa de la República de Colombia Author(s): Rozo, Dario, artist Publication: [Bern] : Instituto Geografico de Kümmerly & Frey, 1939 Subject(s): Yellow Fever -- epidemiologyColombia