Columbia subject headings:
Harvard subject headings:
Child welfare--Poland--Łódź--20th century--History.
Children--Institutional care--Poland--Łódź--History--20th century.
World War, 1914-1918--Poland--Łódź.
Princeton subject headings:
Child welfare--Poland--Łódź--20th century--History.
Children--Institutional care--Poland--Łódź--History--20th century.
World War, 1914-1918--Poland--Łódź.