Columbia subject headings:
Architectural photography--Exhibitions.
Photography of railroads--Exhibitions.
Photography, Abstract--Exhibitions.
Photography, Artistic--Exhibitions.
Photography, Industrial--Exhibitions.
Welling, James--Exhibitions.
Harvard subject headings:
Exhibition catalogs.
Photography, Artistic--Exhibitions
Welling, James--Exhibitions.
Princeton subject headings:
Photography, Artistic--Exhibitions.
Welling, James--Exhibitions.