Title: III Reunion Interamericana de Fitogenetistas, Fitopatologos, Entomologos y Edafologos
Subjects: Congresses, Entomology, Plant breeding, Plant diseases, Reunion Interamericana de Fitogenetistas, Fitopatologos, Entomologos y Edafologos (3rd : 1955 : Bogota, Colombia), Soils