Isolation of plant growth substancesGeothermal energy; recent developmentsSoil factor in crop production in a semiarid environmentDisseases, pests and weeds in tropical cropsTropical trees and forests; an architectural analysisLand evaluation for agricultural developmentIndice de tesis agrícolas de la Republica Dominicana, 1968-1978Fundamentos de edafología para la agriculturaToxic organic chemicals; destruction and waste treatmenThe tropical tuber crops; yams, cassava, sweet potato, cocoyams

Tecnología agrícola||agricultural technology||undefined||technologie agricole, Materiales de enseñanza||teaching materials||material de ensino||matériel pédagogique, Resumen||abstracts||undefined||résumé,

Instituto Interamericano de Cooperación para la Agricultura (IICA)

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