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Haykin, D.J.: Book classification and the problem of change (1955)
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Holley, R.P.: Classification in the USA (1986)
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Umlauf, K.: Einführung in die bibliothekarische Klassifikationstheorie und -praxis : Mit Übungen (1999-)
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Klassifikationen in Bibliotheken : Theorie - Anwendung - Nutzen (2018)
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