Columbia subject headings:
Harvard subject headings:
Agriculture--Economic aspects--Germany--Prussia.
Nobility--Germany--Prussia--History.
Peasants--Germany--Prussia--History.
Prussia (Germany)--History.
Prussia (Kingdom). Armee--History.
Princeton subject headings:
Agriculture--Economic aspects--Germany--Prussia.
Nobility--Germany--Prussia--History.
Peasants--Germany--Prussia--History.
Prussia (Germany)--History.
Prussia (Kingdom). Armee--History.