Columbia subject headings:
Pakistan--Relations--Soviet Union.
Soviet Union--Foreign relations--1945-1991.
Soviet Union--Relations--Pakistan.
Harvard subject headings:
Pakistan--Relations--Soviet Union.
Soviet Union--Foreign relations--1945-1991.
Soviet Union--Relations--Pakistan.
Princeton subject headings:
Pakistan--Relations--Soviet Union.
Soviet Union--Foreign relations--1945-1991.
Soviet Union--Relations--Pakistan.