E. Walter Coward and Wayne A. Schutjer, “The Green Revolution: Initiating and Sustaining Change,” Civilisations 20, no. 4 (1970), 473-484. [...]

Fernando Paz Sanchez, “Mexico: Agricultura y Subdesarrollo,” Problemas del Desarrollo 1, no. 2 (Jan. – Mar. 1970), 17-42. Notes 17 [...]