Columbia subject headings:
Land tenure--Poland.
Social classes--Poland.
Warsaw (Poland : Voivodeship)--Economic conditions.
Harvard subject headings:
Gentry--Poland--Warsaw Region--History--19th century.
Land tenure--Poland--Warsaw Region--History--19th century.
Warsaw Region (Poland)--Economic conditions.
Warsaw Region (Poland)--Social conditions.
Princeton subject headings:
Gentry--Poland--Warsaw Region--History--19th century.
Land tenure--Poland--Warsaw Region--History--19th century.
Warsaw Region (Poland)--Economic conditions.
Warsaw Region (Poland)--Social conditions.