Texte intégral
133 3 Book The Book of CHAC of Programminig Studics CHAC for Mexican Agriculture Nortoin aIRd edited by Solis Rogcr D. Norton anad Lcopoldo Solis M. A WORLD BANK RESEARCH PUBLICATION "'83 Johns Hopkins The Book of CHAC Programming Studies for Mexican Agriculture CHAC (the name of a Mayan rain god) is a programming model for the study of Mexican agriculture. A WORLD BANK RESEARCH PUBLICAI'ION 120