Columbia subject headings:
Coal mines and mining--Poland--Bytom Region.
Kopalnia Miechowice.
Treasure troves.
World War, 1939-1945--Poland--Bytom Region.
Harvard subject headings:
Coal mines and mining--Poland--Bytom Region.
Kopalnia Miechowice.
Treasure troves.
World War, 1939-1945--Poland--Bytom Region.
Princeton subject headings: