Columbia subject headings:
Dynamit-Aktien Gesellschaft--History.
Explosives industry--Poland--Bydgoszcz--History--20th century.
Forced labor--Poland--History--20th century.
World War, 1939-1945--Conscript labor--Poland.
Harvard subject headings:
Dynamit-Aktien Gesellschaft--History.
Explosives industry--Poland--Bydgoszcz--History--20th century.
Forced labor--Poland--History--20th century.
World War, 1939-1945--Conscript labor--Poland.
Princeton subject headings: