Columbia subject headings:
Agriculture--Economic aspects--Poland--Masovia--History.
Masovia (Poland)--Rural conditions.
Poland--Rural conditions.
Harvard subject headings:
Agriculture--Economic aspects--Poland--Masovia--History.
Masovia (Poland)--Rural conditions.
Poland--Rural conditions
Princeton subject headings:
Land use, Rural--Poland--Masovia.
Masovia (Poland)--Rural conditions.
Peasants--Poland--Masovia--Attitudes.