Columbia subject headings:
Dissenters--Baltic States.
Human rights--Baltic States.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.
Harvard subject headings:
Dissenters--Baltic States.
Human rights--Baltic States.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.
Princeton subject headings:
Governmental investigations--United States.
Human rights--Baltic States.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.