Columbia subject headings:
Harvard subject headings:
Europe, Eastern--Politics and government.
Poland--Foreign relations--United States
Poland--Politics and government--1918-1945
United States--Foreign relations--1921-1923.
United States--Foreign relations--1923-1929.
United States--Foreign relations--1929-1933.
United States--Foreign relations--Poland.
Princeton subject headings:
Europe, Eastern--Politics and government.
Poland--Foreign relations--United States.
Poland--Politics and government--1918-1945.
United States--Foreign relations--1921-1923.
United States--Foreign relations--1923-1929.
United States--Foreign relations--1929-1933.
United States--Foreign relations--Poland.