Columbia subject headings:
Harvard subject headings:
Deutsche Hollerith Maschinen Gesellschaft m.b.H.--History.
Germany--Statistical services--History--20th century.
Holocaust, Jewish (1939-1945)--Germany--Data processing.
International Business Machines Corporation--History.
Jews--Germany--History--1933-1945.
Princeton subject headings:
Holocaust, Jewish (1939-1945)--Economic aspects--Germany.
International Business Machine Corporation--History.
Public administration--Germany--Data processing.
Punched card systems.