Catholic Church. Pope (1958-1963 : John XXIII). (1980). On recent developments of the social question in the light of Christian teaching, Mater et magistra: Encyclical letter. St. Paul Editions.
Citação do estilo Chicago (17ª ed.)Catholic Church. Pope (1958-1963 : John XXIII). On Recent Developments of the Social Question in the Light of Christian Teaching, Mater Et Magistra: Encyclical Letter. Boston: St. Paul Editions, 1980.
Citação MLA (8ª ed.)Catholic Church. Pope (1958-1963 : John XXIII). On Recent Developments of the Social Question in the Light of Christian Teaching, Mater Et Magistra: Encyclical Letter. St. Paul Editions, 1980.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.