Columbia subject headings:
Mann, Thomas, 1875-1955--Bibliography--Catalogs.
Harvard subject headings:
Mann, Thomas, 1875-1955--Bibliography--Catalogs.
Universitätsbibliothek Düsseldorf--Catalogs.
Princeton subject headings:
Mann, Thomas, 1875-1955--Bibliography--Catalogs.
Mayer, Hans-Otto, 1903-1983--Library--Catalogs.
Universitätsbibliotthek Düsseldorf--Catalogs.