The Book of CHAC programming studies for Mexican agriculture - Norton, Roger D. 1942-.; Solis M., Leopoldo (Baltimore Published for the World Bank [by] Johns Hopkins University Press, 1983)
"CHAC (the name of a Mayan rain God) is a programming model for the study of Mexican agriculture."
Includes bibliographical references.
Index: p. 590-602.
Keywords: Agriculture -- Economic aspects -- Mathematical models. -- Mexico