@book{186787,
	author = {Bobbio, Norberto,},
	title = {Teoría general del derecho},
	publisher = {Temis},
	year = {c1999 .},
	address = {Santa Fé de Bogotá},
	edition = {2a ed.},
	note = {Tít. orig. : Teoría del la norma juridica .}
}