Columbia subject headings:
Harvard subject headings:
Halberstadt (Germany)--Economic conditions.
Halberstadt (Germany)--History.
Middle class--Germany--Halberstadt.
Middle class--Germany--Quedlinburg.
Quedlinburg (Germany)--Economic conditions.
Quedlinburg (Germany)--History.
Princeton subject headings:
Halberstadt (Germany)--Economic conditions.
Halberstadt (Germany)--History.
Middle class--Germany--Halberstadt.
Middle class--Germany--Quedlinburg.
Quedlinburg (Germany)--Economic conditions.
Quedlinburg (Germany)--History.