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  1. Langridge, D.W.: Subject analysis : principles and procedures (1989) 0.02 
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    Abstract
    Subject analysis is the basis of all classifying and indexing techniques and is equally applicable to automatic and manual indexing systems. This book discusses subject analysis as an activity in its own right, independent of any indexing language. It examines the theoretical basis of subject analysis using the concepts of forms of knowledge as applicable to classification schemes.
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