Catholic Church. Pope & Fremantle, A. J. (1963). The papal encyclicals in their historical context (5th (expanded ed.).). New American Library.
Citação do estilo Chicago (17ª ed.)Catholic Church. Pope e Anne Jackson Fremantle. The Papal Encyclicals in Their Historical Context. 5th (expanded ed.). N.Y.: New American Library, 1963.
Citação MLA (8ª ed.)Catholic Church. Pope e Anne Jackson Fremantle. The Papal Encyclicals in Their Historical Context. 5th (expanded ed.). New American Library, 1963.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.