Columbia subject headings:
Harvard subject headings:
Anti-fascist movements--Spain--History--20th century.
Communists--Spain--History--20th century.
Germans--Spain--Politics and government--20th century.
Kahle, Hans.
Marchwitza, Hans
Renn, Ludwig, 1889-1979
Spain--History--Civil War, 1936-1939--Participation, German.
Princeton subject headings:
Anti-fascist movements--Spain--History--20th century.
Communists--Spain--History--20th century.
Germans--Spain--Politics and government--20th century.
Kahle, Hans.
Marchwitza, Hans.
Renn, Ludwig, 1889-1979.
Spain--History--Civil War, 1936-1939--Participation, German.