@book{270,
	author = {Matia Portilla, Francisco Javier},
	title = {Los tratados internacionales y el principio democrático /},
	publisher = {Marcial Pons,},
	year = {2018.},
	series = {Debates constitucionales },
	address = {Madrid :},
	url = {http://biblioteca.tc.gob.pe/cgi-bin/koha/opac-retrieve-file.pl?id=e7e35e652c84d1bf345e3432f471ffcc}
}