Columbia subject headings:
Europe--Economic conditions.
Germany--History, Military.
Labor--Germany.
Military supplies.
Thirty Years' War, 1618-1648--Finance.
War--Economic aspects.
Harvard subject headings:
Europe--Economic conditions.
Germany--History, Military.
Labor--Germany
Military supplies.
Thirty Years' War, 1618-1648--Finance.
War--Economic aspects
Working class--Germany
Princeton subject headings:
Europe--Economic conditions.
Germany--History, Military.
Military supplies.
Thirty Years' War, 1618-1648--Finance.
War--Economic aspects.
Working class--Germany.