Columbia subject headings:
Harvard subject headings:
Anarchism--Germany--History--20th century--Congresses.
Christian anarchism--Germany--History--20th century--Congresses.
Germany--Religion--Congresses.
Mühsam, Erich, 1878-1934--Congresses.
Princeton subject headings:
Anarchism--Germany--History--20th century--Congresses.
Christian anarchism--Germany--History--20th century--Congresses.
Germany--Religion--Congresses.
Mühsam, Erich, 1878-1934--Congresses.