Modernizing Mexican agriculture : socioeconomic implications of technological change, 1940-1970 / Cynthia Hewitt de Alcantara. Hewitt de Alcantara, Cynthia. United Nations Research Institute for Social Development. Agriculture Economic aspects Mexico Yaqui River Valley. Ejidos Mexico Yaqui River Valley. Agriculture and state Mexico. 338.1 UNM Bibliography: p. 323-348. Geneva : United Nations Research Institute for Social Development, 1976. 1976. 1976 Text xvii, 350 p. : eng UNRISD studies on the "green revolution" ; no. 11 Report - United Nations Research Institute for Social Development ; no. 76.5 Report (United Nations Research Institute for Social Development) ; no. 76.5. Mexico Yaqui River Valley. Mexico Yaqui River Valley. Mexico.