Leo XIII, P. (1879). Instructions and prayers for the Jubilee of 1879, to which is added the encyclical letter of Pope Leo XIII proclaiming the Jubilee. Philadelphia.
Παραπομπή σε μορφή Chicago (17η εκδ.)Leo XIII, Pope. Instructions and Prayers for the Jubilee of 1879, to Which Is Added the Encyclical Letter of Pope Leo XIII Proclaiming the Jubilee. Philadelphia, 1879.
Παραπομπή σε μορφή MLA (8th εκδ.)Leo XIII, Pope. Instructions and Prayers for the Jubilee of 1879, to Which Is Added the Encyclical Letter of Pope Leo XIII Proclaiming the Jubilee. Philadelphia, 1879.
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