@book{5745,
	author = {Machado Cartagena, Absalón,  and Torres O., Jorge.},
	title = {El sistema agroalimentario : },
	publisher = {Siglo Veintiuno Editores ; CEGA, },
	year = {1991.},
	address = {Bogotá : },
	note = {Incluye indice.}
}