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Belkin, N.J.; Croft, W.B.: Retrieval techniques (1987)
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McIlwaine, I.C.; Williamson, N.J.: Class 61 - Medicine : restructuring progress 2000 (2000)
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Williamson, N.J.: Classification issues in 2011 : report (2012)
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Ackermann, E.: Piaget's constructivism, Papert's constructionism : what's the difference? (2001)
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Belkin, N.J.: Anomalous states of knowledge as a basis for information retrieval (1980)
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Belkin, N.J.: Cognitive models and information transfer (1984)
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Joy, A.H.; Keane, N.J.: CDMARC subjects : the Library of Congress Subject Headings on CD-ROM (1989)
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Pruett, N.J.: Using askSam to manage files of bibliographic references (1987)
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Belkin, N.J.: Information concepts for information science (1978)
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