Columbia subject headings:
Balkan Peninsula--Foreign relations--Poland--Sources.
Diplomatic and consular service, Polish--Balkan Peninsula--History--Sources.
Diplomatic and consular service, Polish--Europe, Eastern--History--Sources.
Europe, Eastern--Foreign relations--Poland--Sources.
Poland--Foreign relations--1918-1945--Sources.
Poland--Foreign relations--Balkan Peninsula--Sources.
Poland--Foreign relations--Europe, Eastern--Sources.
Poland--Politics and government--1918-1945--Sources.
Harvard subject headings:
Balkan Peninsula--Foreign relations--Poland--Sources.
Balkan Peninsula--Foreign relations--Poland.
Diplomatic and consular service, Polish--Balkan Peninsula--History--Sources.
Diplomatic and consular service, Polish--Europe, Eastern--History--Sources.
Europe, Eastern--Foreign relations--Poland--Sources.
Europe, Eastern--Foreign relations--Poland.
Poland--Foreign relations--1918-1945--Sources
Poland--Foreign relations--Balkan Peninsula--Sources.
Poland--Foreign relations--Balkan Peninsula.
Poland--Foreign relations--Europe, Eastern--Sources.
Poland--Foreign relations--Europe, Eastern.
Poland--Politics and government--1918-1945
Poland--Politics and government--1918-1945--Sources.
Princeton subject headings: