Columbia subject headings:
Documentary photography--United States--Exhibitions.
Evans, Walker, 1903-1975--Exhibitions.
Photography, Artistic--Exhibitions.
United States--Social conditions--20th century--Pictorial works.
Harvard subject headings:
Documentary photography--Exhibitions
Evans, Walker, 1903-1975--Exhibitions.
Photography, Artistic--Exhibitions
Princeton subject headings:
Evans, Walker, 1903-1975--Exhibitions.