Catholic Church. Pope (1958-1963 : John XXIII). (1961). On recent developments of the social question in the light of Christian teaching: Encyclical letter of His Holiness John XXIII .. Southern African Catholic Bishops' Conference.
Chicago Style (17th ed.) CitationCatholic Church. Pope (1958-1963 : John XXIII). On Recent Developments of the Social Question in the Light of Christian Teaching: Encyclical Letter of His Holiness John XXIII .. Pretoria: Southern African Catholic Bishops' Conference, 1961.
MLA (8th ed.) CitationCatholic Church. Pope (1958-1963 : John XXIII). On Recent Developments of the Social Question in the Light of Christian Teaching: Encyclical Letter of His Holiness John XXIII .. Southern African Catholic Bishops' Conference, 1961.
Warning: These citations may not always be 100% accurate.