Columbia subject headings:
Harvard subject headings:
Abegg, Werner--Art collections--Catalogs.
Abegg, Werner--Art collections--History.
Abegg-Stiftung--Catalogs.
Abegg-Stiftung--History.
Art--Private collections--Switzerland--Riggisberg--Catalogs.
Princeton subject headings:
Abegg, Werner--Art collections--Catalogs.
Abegg, Werner--Art collections--History.
Abegg-Stiftung--Catalogs.
Abegg-Stiftung--History.
Art--Switzerland--Riggisberg.
Catalogs.