@book{6091,
	author = {Mill, John Stuart and Azcarate, Pablo De},
	title = {Sobre la libertad},
	publisher = {Alianza},
	year = {1984},
	series = {El Libro de Bolsillo, seccion : Clasicos, No. 273},
	address = {Madrid (España)},
	edition = {4a. ed.}
}