Exploration and collecting mission for Manihot esculenta. Varietal variation of cassava in the Upper Amazon Palcazu Valley, Peru
General combining ability in 80 small-seeded cultivars of common bean (Phaseolus vulgaris L.) for seed yield and its components
Climatic and edaphic classification at a continental scale (1:5,000,000) for cassava in South America
Hen manure as a fertilizer for common beans (Phaseolus vulgaris L.). Its costs and efficiency compared with those of a chemical fertilizer and a comparison of two common methods of applying hen manure & seeding bean seeds
Informe de la primera reunión de la mesa de consulta del proyecto CIAT - IIT - UNIVALLE - CIID sobre producción y uso de harina de yuca para consumo humano, 20 de marzo de 1986