Catholic Church, Catholic Church. Pope (1227-1241 : Gregory IX), Lancellotti, G. P., Gratian, a. 1. c., & Freiesleben, C. H. (1746). Corpus juris canonici academicum. J.R. Thurnisii.
Citace podle Chicago (17th ed.)Catholic Church, Catholic Church. Pope (1227-1241 : Gregory IX), Giovanni Paolo Lancellotti, active 12th century Gratian, a Christoph Heinrich Freiesleben. Corpus Juris Canonici Academicum. Coloniae Munatianae: J.R. Thurnisii, 1746.
Citace podle MLA (8th ed.)Catholic Church, et al. Corpus Juris Canonici Academicum. J.R. Thurnisii, 1746.
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