Keating, J. (1925). Catholics and the Problem of Peace with an introduction on the origin and programme of the Catholic Council for International relations by John Eppstein. Oxford.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Keating, Joseph. Catholics and the Problem of Peace with an Introduction on the Origin and Programme of the Catholic Council for International Relations by John Eppstein. Oxford, 1925.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Keating, Joseph. Catholics and the Problem of Peace with an Introduction on the Origin and Programme of the Catholic Council for International Relations by John Eppstein. Oxford, 1925.
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