Columbia subject headings:
German literature--Bibliography.
Germany--Imprints.
Insel-Verlag--Exhibitions.
Insel-Verlag.
Kippenberg, Anton, 1874-1950--Exhibitions.
Kippenberg, Anton, 1874-1950.
Kippenberg, Katharina, 1876-1947--Exhibitions.
Kippenberg, Katharina, 1876-1947.
Publishers and publishing--Germany--History.
Harvard subject headings:
Insel-Verlag.
Kippenberg, Anton, 1874-1950.
Kippenberg, Katharina, 1876-1947.
Princeton subject headings:
Book industries and trade--Exhibitions.
Insel-Verlag--Records and Correspondence.
Kippenberg, Anton, 1874-1950--Correspondence.
Kippenberg, Katharina, 1876-1947--Correspondence.