Columbia subject headings:
Harvard subject headings:
Birth control--Great Britain--Statistical services.
Birth control--Great Britain--Statistics--Bibliography.
Contraception--Great Britain--Statistical services.
Contraception--Great Britain--Statistics--Bibliography.
Family size--Great Britain--Statistical services.
Family size--Great Britain--Statistics--Bibliography.
Social Science Research Council (Great Britain)
Princeton subject headings:
Birth control--Great Britain--Statistical services.
Birth control--Great Britain--Statistics--Bibliography.
Contraception--Great Britain--Statistical services.
Contraception--Great Britain--Statistics--Bibliography.
Family size--Great Britain--Statistical services.
Family size--Great Britain--Statistics--Bibliography.