@book{23033,
	author = {Heller, Hermann, and Cueva, Mario de la.},
	title = {La soberanía},
	publisher = {Universidad Nacional Autónoma de México},
	year = {1965.},
	address = {México},
	note = {At head of title: Facultad de Derecho. Seminario de derecho Constitucional.}
}