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- The Testament of Solomon. Edited from Manuscripts at Mount Athos, Bologna, Holkham Hall, Jerusalem, London, Milan, Paris and Vienna with Introduction.
- Testament of Solomon: A First Century Ad Grimoire
- The Key of Truth. A Manual of the Paulician Church of Armenia: The Armenian Text Edited and Translated with Illustrative Documents and Introduction, by Fred. C. Conybeare
- Russian Dissenters