Columbia subject headings:
Germany--Church history--16th century.
Germany--Church history--17th century.
Germany--History--1517-1648.
Thirty Years' War, 1618-1648.
Harvard subject headings:
Germany--Church history--16th century.
Germany--Church history--17th century.
Germany--History--1517-1648.
Germany--Politics and government--1517-1648.
Reformation--Germany
Thirty Years' War, 1618-1648.
Princeton subject headings:
Germany--History--1517-1648.