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Cleverdon, C.W.; Mills, J.; Keen, M.: Factors determining the performance of indexing systems : ASLIB Cranfield research project (1966) 0.02

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Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960) 0.01

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Footnote: Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)

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