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O’Connor, Thomas Power. See Williams, William Llewelyn.
Orpélian, E. See Saint-Martin, Jean Antoine.
Oukhtanes. See Brosset, Marie Félicité.
Papazian, Bertha S. The tragedy of Armenia, a brief study and interpretation, with an introduction by Secretary James L. Barton. Boston, Chicago: The Pilgrim Press [cop. 1918]. xii p., 2 l., 164 p. 12°. BBX
Chapters 1–4 reprinted in the Armenian herald, v. 1, p. 626–632; v. 2, p. 29–46, 93–103, *ONK.
Pavlovitch, Michel. La Russie et les Arméniens. (Revue politique internationale. Paris, 1914. 8°. 1914. partie 1, p. 463–479.) SEA
Письма изъ Арменіи. (Московскій Телеграфъ. Moscow, 1829. 8°. 1829, no. 8, p. 361–400.) *QCA
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Prud’homme, Évariste. See Arisdaguès de Lasdiverd; also Constitution nationale; also Zénob of Klag.