00000nam a2200000 a 4500 Johannes <XXIII., Papst> aut Verfasser/-in Friedensethik Katholische Soziallehre Weltfriedensbotschaft Weltfriedenstag Encyclical letter Pacem in terris of His Holiness Pope John XXIII ; Message for the Celebration of the World Day of Peace 2003 of Libreria Editrice Vaticana 2003 9788820974879 9788820974879