Columbia subject headings:
Harvard subject headings:
China--Photographs.
China--Pictorial works--Exhibitions.
Rock, Joseph F. (Joseph Francis), 1884-1962.
Tibet Autonomous Region (China)--Photographs.
Tibet Autonomous Region (China)--Pictorial works--Exhibitions.
Princeton subject headings:
Documentary photography--China--Tibet--Exhibitions.
Rock, Joseph F. (Joseph Francis), 1884-1962--Exhibitions.
Tibet Autonomous Region (China)--Description and travel--Exhibitions.