Leo XIII, P. (1889). Allocution of Our Most Holy Father, Pope Leo XIII: Delivered in consistory on the 30th of June, 1889. London?.
Παραπομπή σε μορφή Chicago (17η εκδ.)Leo XIII, Pope. Allocution of Our Most Holy Father, Pope Leo XIII: Delivered in Consistory on the 30th of June, 1889. London?, 1889.
Παραπομπή σε μορφή MLA (8th εκδ.)Leo XIII, Pope. Allocution of Our Most Holy Father, Pope Leo XIII: Delivered in Consistory on the 30th of June, 1889. London?, 1889.
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