Columbia subject headings:
Photography, Artistic--Exhibitions.
Photography--Russia (Federation)--Exhibitions.
Photography--Soviet Union--Exhibitions.
Harvard subject headings:
Photographs--Collectors and collecting--Switzerland--Exhibitions.
Photography, Artistic--Exhibitions
Photography--Russia (Federation)--Exhibitions.
Photography--Russia--History--19th century--Exhibitions.
Photography--Russia--History--20th century--Exhibitions.
Photography--Soviet Union--Exhibitions.
Princeton subject headings: