Columbia subject headings:
Harvard subject headings:
Martial law--Poland--History--20th century.
Poland--Foreign relations--Soviet Union
Poland--Politics and government--1980-1989
Soviet Union--Foreign relations--Poland.
Princeton subject headings:
Martial law--Poland--History--20th century.
Poland--Foreign relations--Soviet Union.
Poland--Politics and government--1980-1989.
Soviet Union--Foreign relations--Poland.