Columbia subject headings:
Birkenhead (England)--Economic conditions.
Riots--England--Birkenhead.
Working class--England--Birkenhead--History--20th century.
Harvard subject headings:
Birkenhead (England)--Economic conditions.
Riots--England--Birkenhead.
Working class--England--Birkenhead--History--20th century.
Princeton subject headings:
Birkenhead (England)--Social conditions.
Depressions--1932--England--Birkenhead.
Unemployment--England--Birkenhead.