Columbia subject headings:
Harvard subject headings:
Germans--Poland--Łódź--History--19th century.
Germans--Poland--Łódź--History--20th century.
Jews--Poland--Łódź--History--19th century.
Jews--Poland--Łódź--History--20th century.
Łódź (Poland)--Ethnic relations.
Princeton subject headings:
Germans--Poland--Łódź--History--19th century.
Germans--Poland--Łódź--History--20th century.
Jews--Poland--Łódź--History--19th century.
Jews--Poland--Łódź--History--20th century.
Łódź (Poland)--Ethnic relations.