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Williamson, N.J.: ¬The Library of Congress Classification and the computer: research in progress (1989)
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Williamson, N.J.: ¬The role of classification in online systems (1989)
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Williamson, N.J.: Education for positions in the subject control of information (1987)
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Williamson, N.J.: Subject access in the on-line environment (1984)
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Williamson, N.J.: Online Klassifikation : Gegenwart und Zukunft (1988)
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Williamson, N.J.: Subject cataloguing in Canada (1982)
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McIlwaine, I.C.; Williamson, N.J.: Class 61 - Medicine : restructuring progress 2000 (2000)
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Williamson, N.J.: ¬The Library of Congress Classification : problems and prospects in online retrieval (1986)
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Williamson, N.J.: Classification in online systems : research and the North American perspective (1985)
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Williamson, N.J.: Restructuring UDC : problems and possibilities (1992)
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Williamson, N.J.: ¬The role of classification in online systems (1989)
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Williamson, N.J.: Classification issues in 2011 : report (2012)
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Williamson, N.J.: UDC activities (1993)
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Williamson, N.J.: Subject cataloguing and LCSH (1991)
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Williamson, N.J.: Standards and standardization in subject analysis systems : current status and future directions (1995)
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Williamson, N.J.: Deriving a thesaurus from a restructured UDC (1996)
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Williamson, N.J.: ¬An experiment in classification based on William Goffman's 'indirect method' of information retrieval (1981)
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Williamson, N.J.: Eighth International ISKO Conference, London, UK, 13-16- July 2004 : Report (2004)
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McIlwaine, I.C.; Williamson, N.J.: Restructuring of class 61 : medical sciences (1995)
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McIlwaine, I.C.; Williamson, N.J.: Restructuring of class 61 : medical sciences (1996)
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