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1od Hellriegel, Martin B., 1890-1981Location: Hesburgh Libraries, University of Notre Dame
Izdano 1951
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2od Hellriegel, Martin B., 1890-1981Location: Hesburgh Libraries, University of Notre Dame
Izdano 1956
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3od Hellriegel, Martin B., 1890-1981Location: Hesburgh Libraries, University of Notre Dame
Izdano 1947
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4Location: PAHRC Library, Philadelphia Archdiocesan Historical Research Center (PAHRC)
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5od Michel, Virgil George, 1890-1938Drugi avtorji: “...Hellriegel, Martin B., 1890-1981...”
Izdano 1930
Location: Hesburgh Libraries, University of Notre Dame
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6Izdano 1935Drugi avtorji: “...Hellriegel, Martin B., 1890-1981...”
Location: Paul Bechtold Library, Catholic Theological Union
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