Columbia subject headings:
Agudat Israel.
Jews--Poland--History--20th century.
Orthodox Judaism--Poland--History--20th century.
Poland--Ethnic relations.
Harvard subject headings:
Agudat Israel--History.
Jews--Poland--History--20th century.
Jews--Poland--Societies, etc.--History.
Orthodox Judaism--Poland--Societies, etc.--History.
Orthodox Judaism--Political aspects.
Poland--Ethnic relations
Princeton subject headings:
Agudat Israel.
Jews--Poland--History--20th century.
Orthodox Judaism--Poland--History--20th century.
Poland--Ethnic relations.