Pope Paul VI البابا بولس السادس
Encyclical Letter Populorum progressio and Apostolic letter Octogesima adveniens on the occasion of the eightieth anniversary of the encyclical Rerum novarum - Vatican Typis Polyglottis Vaticanis 1971 - 165 19 cm
Washington, D.C. : United States Catholic Conference, 1971
1971
English
Encyclical Letter Populorum progressio and Apostolic letter Octogesima adveniens on the occasion of the eightieth anniversary of the encyclical Rerum novarum - Vatican Typis Polyglottis Vaticanis 1971 - 165 19 cm
Washington, D.C. : United States Catholic Conference, 1971
1971
English