Columbia subject headings:
Velde, Bram van, 1895-1981--Exhibitions.
Velde, Geer van, 1898-1977--Exhibitions.
Harvard subject headings:
Velde, Bram van, 1895-1981--Exhibitions.
Velde, Geer van, 1898-1977--Exhibitions.
Princeton subject headings:
Velde, Bram van, 1895-1981--Exhibitions.
Velde, Geer van, 1898-1977--Exhibitions.