1. Mapa de las zonas oncocercosas de Guatemala Publication: [Guatemala] : [publisher not identified], [between 1940 and 1960?] Subject(s): Onchocerciasis, OcularGuatemala
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
