Columbia subject headings:
Colonna, Edward, 1862-1948--Exhibitions.
Decoration and ornament--Art nouveau--Exhibitions.
Harvard subject headings:
Colonna, Edward, 1862-1948--Exhibitions.
Decoration and ornament--Art nouveau--Exhibitions
Princeton subject headings:
Art nouveau.
Colonna, Edward, 1862-1948.
Decoration and ornament--Art nouveau.