@book{151277,
	author = {Catholic Church and John},
	title = {Carta encíclica de nuestro santísimo señor Juan por la Divina Providencia, Papa XXIII.},
	publisher = {Ecuador OO̊'O"},
	year = {1963.},
	address = {México},
	note = {Cover title: Pacem in terris.}
}