Columbia subject headings:
Anti-Nazi movement--Germany--History.
K.P.D. (Opposition)--Biography.
K.P.D. (Opposition)--History.
Harvard subject headings:
Communism--Germany--History--20th century
K.P.D. (Opposition)--History.
Princeton subject headings:
Anti-Nazi movement--Germany--History.
K.P.D. (Opposition)--Biography.
K.P.D. (Opposition)--History.