Columbia subject headings:
Crown jewels--Soviet Union.
Industries--Soviet Union.
Soviet Union--Commerce--United States.
Soviet Union--Economic conditions--1917-1945.
United States--Commerce--Soviet Union.
Harvard subject headings:
Crown jewels--Soviet Union.
Industries--Soviet Union
Soviet Union--Commerce--United States.
Soviet Union--Economic conditions--1917-1945.
United States--Commerce--Soviet Union.
Princeton subject headings: