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Cleveland, D.B.; Cleveland, A.D.: Introduction to abstracting and indexing (2001)
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Cleveland, D.B.; Cleveland, A.D.: Introduction to abstracting and indexing (1990)
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Langridge, D.W.: Subject analysis : principles and procedures (1989)
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Lancaster, F.W.: Indexing and abstracting in theory and practice (1998)
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Lancaster, F.W.: Indexing and abstracting in theory and practice (2003)
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