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Wilson, T.D.: ¬The work of the British Classification Research Group (1972) 0.03

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Series: Contributions in librarianship and information science; 3
Source: Subject retrieval in the seventies: new directions. Proc. of an int. symp. ... College Park, 14.-15.5.1971. Ed.: H.H. Wellisch u.a

Aitchison, J.: ¬The thesaurofacet. A multipurpose retrieval language tool (1970) 0.01

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Source: Journal of documentation. 26(1970), S.187-203

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