Columbia subject headings:
Book industries and trade--Germany--History.
Insel-Verlag--Bibliography.
Publishers and publishing--Germany--History.
Harvard subject headings:
Book industries and trade--Germany--History.
German literature--Bibliography--Catalogs
Germany--Imprints--Catalogs.
Insel-Verlag--Bibliography.
Insel-Verlag--Catalogs.
Monographic series--Bibliography--Catalogs.
Publishers and publishing--Germany--History.
Publishers' catalogs--Germany
Princeton subject headings:
Book industries and trade--Germany--History.
Insel-Verlag--Bibliography.
Publishers and publishing--Germany--History.