Éditeur(s) : Sector Público Agrícola, Instituto de Ciencia y Tecnología Agricolas Sector Público Agrícola, Instituto de Ciencia y Tecnología Agricolas ( Guatemala )
Résumé : (Statement of Responsibility) Peter E. Hildebrand.
(Bibliography) Includes bibliographical references (p. 15).
"Presented at the Seminar on the Improvement of Farm Production Systems, ... Bamako, Mali, 20 Febr.-1 Mar, 1978."
"February 1978."
Typescript (photocopy).
Guatemala

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