Columbia subject headings:
Harvard subject headings:
Oberschwaben (Germany)--History--Congresses.
Oberschwaben (Germany)--Politics and government--20th century--Congresses.
World War, 1914-1918--Germany--Oberschwaben--Congresses.
Princeton subject headings:
Oberschwaben (Germany)--History--Congresses.
Oberschwaben (Germany)--Politics and government--20th century--Congresses.
World War, 1914-1918--Germany--Oberschwaben--Congresses.