Columbia subject headings:
Agriculture--Economic aspects--Germany--Prussia--History--16th century.
Agriculture--Economic aspects--Poland--History--16th century.
Prices--Germany--Prussia--History--16th century.
Prices--Poland--History--16th century.
Harvard subject headings:
Agriculture--Economic aspects--Germany--Prussia--History--16th century.
Agriculture--Economic aspects--Poland--History--16th century.
Prices--Germany--Prussia--History--16th century.
Prices--Poland--History--16th century.
Princeton subject headings: