Columbia subject headings:
Harvard subject headings:
Gentry--Poland--Lublin (Voivodeship)--History.
Lublin (Poland : Voivodeship)--Civilization.
Manors--Poland--Lublin (Voivodeship)--History.
Princeton subject headings:
Gentry--Poland--Lublin (Voivodeship)--History--20th century.
Lublin (Poland : Voivodeship)--Civilization--20th century.
Manors--Poland--Lublin (Voivodeship)--History--20th century.