@book{54198,
	author = {Witker, Jorge. and e-libro, Corp.},
	title = {Derecho tributario aduanero},
	publisher = {Instituto de Investigaciones Jurídicas, Universidad Nacional Autónoma de México,},
	year = {1999.},
	address = {México :},
	edition = {2. ed.},
	url = {https://elibro.net/ereader/politecnicointernacional/72250}
}