Citazione APA

Pius IX, P. (1865). The Encyclical Letter of His Holiness, Pius IX, together with the Syllabus of Errors Condemned, to which is added the brief, "Arcano Divinae Providentiae" of 1846. Argus Company.

Stile di citazione Chicago

Pius IX, Pope. The Encyclical Letter of His Holiness, Pius IX, Together with the Syllabus of Errors Condemned, to Which Is Added the Brief, "Arcano Divinae Providentiae" of 1846. Albany: Argus Company, 1865.

Citazione MLA

Pius IX, Pope. The Encyclical Letter of His Holiness, Pius IX, Together with the Syllabus of Errors Condemned, to Which Is Added the Brief, "Arcano Divinae Providentiae" of 1846. Argus Company, 1865.