Columbia subject headings:
Lithuania--Foreign relations--Poland.
Poland--Foreign relations--Lithuania.
Vilna.
World War, 1914-1918--Territorial questions--Lithuania.
Harvard subject headings:
Lithuania--Foreign relations--Poland.
Poland--Foreign relations--Lithuania
Vilnius (Lithuania)
World War, 1914-1918--Territorial questions--Lithuania
Princeton subject headings:
Lithuania--Foreign relations--Poland.
Poland--Foreign relations--Lithuania.
Vilna (Poland)
World War, 1914-1918--Territorial questions--Lithuania.