Columbia subject headings:
Harvard subject headings:
Elections--Germany--Ludwigshafen am Rhein--History.
Germany. Reichstag--Elections--History.
Social structure--Germany--Ludwigshafen am Rhein--History.
Voting--Germany--Ludwigshafen am Rhein--History.
Princeton subject headings:
Elections--Germany (West)--Ludwigshafen am Rhein.
Germany. Reichstag--Elections.
Social structure--Germany (West)--Ludwigshafen am Rhein.