Socio-Economic Questions
Populorum Progressio: Encyclical on The Development of Peoples
Octogesima Adveniens: Apostolic Letter on the Eightieth Anniversary of Rerum Novarum
Marriage and the Family
Humanae Vitae: Encyclical on Human Life and the Regulation of Birth
Message to the Archbishop of New York on the 10th Anniverary of Humanae Vitae, May 24th 1978
Matrimonia Mixta: Apostolic Letter on Mixed Marriages
Other Social Issues
Messages for the World Day of Peace from 1968 to 1978
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