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Dreyfuss, R.: Library of Congress Classification for judaica : recent changes (1989-1990) (1990/91)
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Ruderman, E.: Library of Congress Classification for judaica : recent changes (1993-1994) (1994/95)
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Dreyfuss, R.: Library of Congress Classification for judaica : recent changes (1992-1993) (1993/94)
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Dreyfuss, R.: Library of Congress Subject Classification for Judaica : recent changes (1991-1992) (1992/93)
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Weinberg, B.H.: ¬The hidden classification in Library of Congress Subject Headings for Judaica (1993)
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