@book{33738,
	author = {Kelsen, Hans, 1881-1973},
	title = {Teoría pura del derecho},
	publisher = {Porrúa,},
	year = {1991},
	address = {México :},
	edition = {6},
	note = {Esta obra pertenece al donativo del Mtro. Ernesto Martínez Orozco}
}