@book{107309,
	author = {Medina Lara, María Socorro},
	title = {Agricultura regional II viaje generacional al ejido Cerritos y Tecpan de Galeana Edo. de Guerrero /},
	publisher = {UACH. Departamento de Preparatoria Agrícola,},
	year = {1996.},
	address = {Chapingo, Méx. :}
}