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Bell, H.K.: History of indexing societies : Pt.6: 1988-91 (2000)
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Bell, H.K.: History of indexing societies : Pt.2: three affiliations (1997)
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Bell, H.K.: History of indexing societies : Pt.3: Society of Indexers 1968-1977 (1998)
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Bell, H.K.: History of indexing societies : Pt.4: 1978-82 (1998)
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Bell, H.K.: Index makers of today (1993)
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