@book{880,
	author = {Johnson, Loch K.},
	title = {Acuerdos internacionales de los presidentes norteamericanos : El Congreso se enfrenta al Poder Ejecutivo},
	publisher = {Grupo Editorial Latinoamericano},
	address = {Argentina :},
	note = {Título original : The making of international agreements. Congress confronts the executive}
}