Columbia subject headings:
Child development.
Social policy.
Tizard, Jack, 1919-1979.
Harvard subject headings:
Child development
Child development--Government policy--Great Britain.
Child psychology
Children with mental disabilities--Care--Great Britain
Children with mental disabilities--Education--Great Britain
Great Britain--Social policy.
People with mental disabilities.
Tizard, Jack, 1919-1979.
Princeton subject headings: