Columbia subject headings:
Harvard subject headings:
Fertility, Human--Great Britain--History--20th century.
Great Britain--Emigration and immigration--History--20th century.
Great Britain--Population--History--20th century.
Migration, Internal--Great Britain--History--20th century.
Mortality--Great Britain--History--20th century.
Princeton subject headings:
Fertility, Human--Great Britain--History--20th century.
Great Britain--Emigration and immigration--History--20th century.
Great Britain--Population--History--20th century.
Migration, Internal--Great Britain--History--20th century.
Mortality--Great Britain--History--20th century.