Columbia subject headings:
Harvard subject headings:
Libraries--Germany--Düsseldorf--Special collections.
Library resources--Germany--Düsseldorf.
Manuscripts, Medieval--Germany--Düsseldorf.
Rare books--Germany--Düsseldorf.
Universitäts- und Landesbibliothek Düsseldorf.
Princeton subject headings:
Libraries--Germany--Düsseldorf--Special collections.
Library resources--Germany--Düsseldorf.
Manuscripts, Medieval--Germany--Düsseldorf.
Rare books--Germany--Düsseldorf.
Universitäts- und Landesbibliothek Düsseldorf.