Title: Classification in theory and practice
Subjects: Classification, Books, Classification [MESH], Book Classification, Livres, Classification (information handling function), Bibliothéconomie, Klassifikation, Classificatietheorie, Classificatie, Bibliothek, Amerika Haus Berlin Video Lending Library, Amerika Haus Berlin, Umschulungswerkstätten für Siedler und Auswanderer, Library materials