AN INTEGRATED AIIPROACH TO THE IMPROVEMENT OF FARI PRODUCTION SYSTEMS Peter E. Hildebrand Presented at the Seminar on the Iwnrovement of Farm Production Systems S(j'red by the Club du SahelBamako, Mali 20 Feb - 1 Mar, 1978 Socioeconoia Rural INSTITUTO DE CIENCIA Y TECHNOLOGIA AGRICOLAS SECTOR PUBLICO AGRICOLA GUATEMALA, CENTRAL AMERICA FEBRUARY 1978