Needham, C.D.
Organizing knowledge in libraries : an introduction to information retrieval
Andre Deutsch, 1974
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Chowdhury, G.G.
Introduction to modern information retrieval
Facet Publishing , 2004, 2006
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Salton, Gerard
Introduction to modern information retrieval
McGraw-Hill, 1983
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Chowdhury, G.G.
Introduction to modern information retrieval
Library Association Publishing, 1999
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Manning, Christopher D.
Introduction to information retrieval
Cambridge University Press, 2008
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