Catholic Church. Pope (1963-1978 : Paul VI) & Paul VI, P. (1967). Apostolic letter issued motu proprio: Setting up the Council on the laity and the Pontifical Commission for studies on justice and peace. United States Catholic Conference.
Chicago-referens (17:e uppl.)Catholic Church. Pope (1963-1978 : Paul VI) och Pope Paul VI. Apostolic Letter Issued Motu Proprio: Setting Up the Council on the Laity and the Pontifical Commission for Studies on Justice and Peace. Washington, D.C.: United States Catholic Conference, 1967.
MLA-referens (8:e uppl.)Catholic Church. Pope (1963-1978 : Paul VI) och Pope Paul VI. Apostolic Letter Issued Motu Proprio: Setting Up the Council on the Laity and the Pontifical Commission for Studies on Justice and Peace. United States Catholic Conference, 1967.