Columbia subject headings:
Gorson, Aaron Harry, 1872-1933--Exhibitions.
Pittsburgh (Pa.)--In art--Exhibitions.
Steel industry and trade in art--Exhibitions.
Harvard subject headings:
Gorson, Aaron Harry, 1872-1933--Catalogs.
Gorson, Aaron Harry, 1872-1933--Exhibitions.
Pittsburgh (Pa.) in art--Exhibitions.
Pittsburgh (Pa.)--In art--Catalogs.
Steel industry and trade in art--Catalogs.
Steel industry and trade in art--Exhibitions.
Princeton subject headings:
Gorson, Aaron Harry, 1872-1933--Exhibitions.
Pittsburgh (Pa.)--In art--Exhibitions.
Steel industry and trade in art--Exhibitions.