@book{168620,
	author = {Bryce, James Bryce, Viscount and Lucas Verdú, Pablo},
	title = {Constituciones flexibles y constituciones rígidas},
	publisher = {Instituto de Estudios Políticos},
	year = {1963.},
	series = {Clásicos políticos},
	address = {Madrid},
	edition = {2. ed.}
}