-
Comaroni, J.P.: Book numbers : a historical study and practical guide to their use (1981)
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- Theme
- Geschichte der Klassifikationssysteme
-
Lehnus, D.J.: Book numbers : history, principles and applications (1980)
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- Theme
- Geschichte der Klassifikationssysteme
-
Satija, M.P.; Comaroni, J.P.: Beyond classification: book numbers (1992)
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- Footnote
- Rez. in: Knowledge organization 20(1993) no.3, S.169-170 (W. Bies)
