Catholic Church. Pope (1963-1978 : Paulus VI). (1971). Apostolic letter Octogesima adveniens / of His Holiness Pope Paul VI, to Maurice Cardinal Roy ... on the occasion of the eightieth anniversary of the Encyclical Rerum novarum. Catholic Truth Society.
Chicagoスタイル(17版)引用形式Catholic Church. Pope (1963-1978 : Paulus VI). Apostolic Letter Octogesima Adveniens / of His Holiness Pope Paul VI, to Maurice Cardinal Roy ... on the Occasion of the Eightieth Anniversary of the Encyclical Rerum Novarum. London: Catholic Truth Society, 1971.
MLA(8版)引用形式Catholic Church. Pope (1963-1978 : Paulus VI). Apostolic Letter Octogesima Adveniens / of His Holiness Pope Paul VI, to Maurice Cardinal Roy ... on the Occasion of the Eightieth Anniversary of the Encyclical Rerum Novarum. Catholic Truth Society, 1971.