Columbia subject headings:
Grójec Region (Warsaw, Poland)--History.
World War, 1939-1945--Underground movements--Poland--Gròjec Region (Warsaw)
Harvard subject headings:
Grójec Region (Warsaw, Poland)--History.
World War, 1939-1945--Poland--Grójec Region.
World War, 1939-1945--Underground movements--Poland--Gròjec Region (Warsaw)
World War, 1939-1945--Underground movements--Poland--Grójec Region.
Princeton subject headings: