@book{5235,
	author = {Witker, Jorge. and I. Jaramillo, Gerardo, coaut.},
	title = {Comercio exterior de México, marco jurídico y operativo/},
	publisher = {McGRAW-hill.},
	series = {Series I: Estudios de Derecho Económico, núm. 28},
	address = {México :}
}