II, J. P. (1988). Encyclical letter: Sollicitudo rei socialis of the supreme pontiff John Paul II to the bishops priests religious families sons and daughters of the Church and all people of good will for the twentieth anniversary of populorum progressio. ST Paul Publications.
Chicago Style CitationII, John Paul. Encyclical Letter: Sollicitudo Rei Socialis of the Supreme Pontiff John Paul II to the Bishops Priests Religious Families Sons and Daughters of the Church and All People of Good Will for the Twentieth Anniversary of Populorum Progressio. ST Paul Publications, 1988.
MLA CitationII, John Paul. Encyclical Letter: Sollicitudo Rei Socialis of the Supreme Pontiff John Paul II to the Bishops Priests Religious Families Sons and Daughters of the Church and All People of Good Will for the Twentieth Anniversary of Populorum Progressio. ST Paul Publications, 1988.