Columbia subject headings:
Photography, Artistic--Exhibitions.
Photography--History--19th century--Exhibitions.
Photography--History--20th century--Exhibitions.
Harvard subject headings:
Photographers--Biography
Photography, Artistic--Exhibitions
Photography--History--19th century--Exhibitions.
Photography--History--20th century--Exhibitions.
Princeton subject headings:
Photography, Artistic--Exhibitions.
Photography--History--19th century--Exhibitions.
Photography--History--20th century--Exhibitions.