@book{4453,
	author = {México. Leyes, decretos, etc. and Trueba Barrera, Jorge.},
	title = {Legislación federal del trabajo burocrático},
	publisher = {Porrúa,},
	year = {1991},
	series = {Leyes y códigos de México},
	address = {México, D. F. :},
	edition = {28a. ed}
}