Shortly after World War II the United States began to export to developing countries the ''land-grant model"-its system of applied agricultural science. This system is made up of subnational agricultural universities, extension services, and experiment stations, and also of national-level organizations to support and coordinate agricultural develop
Impresión bajo demanda
Impresión bajo demanda
Impresión bajo demanda
Impresión bajo demanda
Impresión bajo demanda
Impresión bajo demanda
