Columbia subject headings:
Poland--History, Local--Bibliography of bibliographies.
Poland--History, Local--Bibliography.
Poland--Rural conditions--Bibliography of bibliographies.
Poland--Rural conditions--Bibliography.
Villages--Bibliography--Poland--Rural conditions.
Villages--Poland--Bibliography of bibliographies.
Harvard subject headings:
Agriculture--Poland--History--Bibliography.
Feudalism--Poland--Bibliography.
Poland--History--Bibliography.
Princeton subject headings:
Poland--History, Local--Bibliography of bibliographies.
Poland--Rural conditions--Bibliography of bibliographies.
Villages--Poland--Bibliography of bibliographies.
Villages--Poland--Bibliography--Poland--Rural conditions.