Columbia subject headings:
Afghanistan--Foreign relations--Soviet Union.
Afghanistan--History--20th century.
Afghanistan--History--Soviet occupation, 1979-1989.
Communism--Afghanistan.
Soviet Union--Foreign relations--Afghanistan.
Harvard subject headings:
Princeton subject headings:
Afghanistan--Foreign relations--Soviet Union.
Afghanistan--History--20th century.
Afghanistan--History--Soviet occupation, 1979-1989.
Communism--Afghanistan.
Soviet Union--Foreign relations--Afghanistan.