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Lehnus, D.J.: Book numbers : history, principles and applications (1980)
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- Enthält Liste der Cutter-Tafeln
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Comaroni, J.P.: Book numbers : a historical study and practical guide to their use (1981)
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- Geschichte der Klassifikationssysteme
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Satija, M.P.: History of book numbers (1987)
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- Geschichte der Klassifikationssysteme
