@book{5227,
	author = {Asteinza Bilbao, Gaiska. and Gómez González, Gerardo. and UACH.},
	title = {Adequate technologies and productivity in mexican agriculture},
	publisher = {Los autores,},
	year = {1991},
	address = {[Chapingo, Méx.] :},
	note = {Ponencia presentada en: Workshop on Energy Strategies for Sustainable Food Production (1991: Berlín)}
}