Columbia subject headings:
Clayton (Pittsburgh, Pa.)--Pictorial works.
Frick family--Homes and haunts--Pennsylvania--Pittsburgh--Pictorial works.
Harvard subject headings:
Clayton (Museum : Pittsburgh, Pa.)--Exhibitions.
Clayton (Museum : Pittsburgh, Pa.)--Pictorial works.
Frick, Henry Clay, 1849-1919--Homes and haunts--Pennsylvania--Pittsburgh--Exhibitions.
Frick, Henry Clay, 1849-1919--Homes and haunts--Pennsylvania--Pittsburgh--Pictorial works.
Muniz, Vik--Exhibitions.
Pittsburgh (Pa.)--Buildings, structures, etc.--Exhibitions.
Pittsburgh (Pa.)--Buildings, structures, etc.--Pictorial works.
Princeton subject headings:
Clayton (Museum : Pittsburgh, Pa.)--Exhibitions.
Clayton (Museum : Pittsburgh, Pa.)--Pictorial works.
Frick, Henry Clay, 1849-1919--Homes and haunts--Pennsylvania--Pittsburgh--Exhibitions.
Frick, Henry Clay, 1849-1919--Homes and haunts--Pennsylvania--Pittsburgh--Pictorial works.
Pittsburgh (Pa.)--Buildings, structures, etc.--Exhibitions.
Pittsburgh (Pa.)--Buildings, structures, etc.--Pictorial works.