Catholic Church. Pope, Fremantle, A. J., Hebblethwaite, M., & Hebblethwaite, P. (1963). The papal encyclicals in their historical context (5th (expanded ed.).). New American Library.
Citace podle Chicago (17th ed.)Catholic Church. Pope, Anne Jackson Fremantle, Margaret Hebblethwaite, a Peter Hebblethwaite. The Papal Encyclicals in Their Historical Context. 5th (expanded ed.). N.Y.: New American Library, 1963.
Citace podle MLA (8th ed.)Catholic Church. Pope, et al. The Papal Encyclicals in Their Historical Context. 5th (expanded ed.). New American Library, 1963.
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