Columbia subject headings:
Harvard subject headings:
Defense industries--Germany--Allgäu--History.
Fischen (Concentration camp)--History.
Forced labor--Germany--Allgäu--History.
Messerschmitt AG (Firm)--History.
Princeton subject headings:
Defense industries--Germany--Allgäu--History.
Fischen (Concentration camp)--History.
Forced labor--Germany--Allgäu--History.
Messerschmitt AG (Firm)--History.