Klassifikationen in BibliothekenHeidrun Alex, Guido Bee, Ulrike Junger · First published 2014Open the Tome
Dewey decimal classificationLois Mai Chan, John P. Comaromi, Mohinder Partap Satija, Joan S. Mitchell, Deutsche Bibliothek (Frankfurt am Main, Germany), Heidrun Alex · First published 1990Open the Tome
