Columbia subject headings:
Harvard subject headings:
Gorbachev, Mikhail Sergeevich, 1931-
Reagan, Ronald--Journeys--Russia (Federation)--Moscow.
Soviet Union--Foreign relations--United States.
Summit meetings--Russia (Federation)--Moscow.
United States--Foreign relations--Soviet Union.
Visits of state--Soviet Union
Princeton subject headings:
Reagan, Ronald--Travel--Soviet Union.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.
Visits of state--Soviet Union.