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1by Guillén Pérez, Víctor M., Portillo Vázquez, Marcos, consejero., Martínez Garza, Ángel, asesor., Chalita Tovar, Luis E., asesor., Colegio de Postgraduados Campus Chapingo, (México). Centro de Economía.
Published 1980Texto bibliotecaCOLPOS
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