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Wilson, T.D.: ¬The work of the British Classification Research Group (1972)
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- Series
- Contributions in librarianship and information science; 3
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- Subject retrieval in the seventies: new directions. Proc. of an int. symp. ... College Park, 14.-15.5.1971. Ed.: H.H. Wellisch u.a
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Austin, D.: ¬The CRG research into a freely faceted scheme (1976)
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- Source
- Classification in the 1970s. Rev. ed
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Mills, J.: Bibliographic classification (1976)
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- Source
- Classification in the 1970s: a second look. Rev. ed. Ed.: A. Maltby
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Gopinath, M.A.: Colon classification (1976)
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- Source
- Classification in the 1970s: a second look. Rev. ed. Ed.: A. Maltby
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Maltby, A.; Gill, L.: ¬The case for Bliss : modern classification practice and principles in the context of the Bibliographic classification (1979)
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Austin, D.: Differences between library classifications and machine-based subject retrieval systems : some inferences drawn from research in Britain, 1963-1973 (1979)
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