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Immroth, J.P.: Analysis of vocabulary control in Library of Congress Classification and Subject Headings (1971) 0.04

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Imprint: Littleton : Libraries Unlimited
Series: Research studies in library science; No.3

Wynar, B.S.; Immroth, J.P.: Introduction to cataloguing and classification (1976) 0.01

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Imprint: Littleton, Colo. : Libraries Unlimited