@book{202063,
	author = {Duverger, Maurice,},
	title = {Instituciones politicas y derecho constitucional},
	publisher = {Ediciones Ariel},
	year = {1970.},
	series = {Biblioteca de ciencia politica.},
	address = {Barcelona},
	edition = {5a. edición española},
	note = {Titulo original : Institutions politiques et droit constitutionnel.}
}