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1gan Herwegen, Ildefons, 1874-1946Location: Hesburgh Libraries, University of Notre Dame
Cyhoeddwyd 1955
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2gan Herwegen, Ildefons, 1874-1946Location: Paul Bechtold Library, Catholic Theological Union
Cyhoeddwyd 1924
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3gan Herwegen, Ildefons, 1874-1946Location: Paul Bechtold Library, Catholic Theological Union
Cyhoeddwyd 1922
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