Columbia subject headings:
Art nouveau--Europe.
Decoration and ornament--Europe--Art nouveau.
Gillion Crowet, Anne-Marie--Art collections.
Harvard subject headings:
Art nouveau--Europe--Catalogs.
Decoration and ornament--Europe--Art nouveau--Catalogs.
Decorative arts--Europe--History--20th century--Catalogs.
Decorative arts--Private collections--Belgium--Catalogs.
Gillion Crowet, Anne-Marie--Art collections--Catalogs.
Princeton subject headings:
Art nouveau--Europe.
Decoration and ornament--Europe--Art nouveau.
Gillion Crowet, Anne-Marie--Art collections.