Columbia subject headings:
Harvard subject headings:
Educational equalization--Great Britain.
Educational equalization--United States.
Educational sociology--Great Britain.
Educational sociology--United States.
Teacher-student relationships--Great Britain
Teacher-student relationships--United States
Princeton subject headings:
Educational equalization--Great Britain.
Educational equalization--United States.
Educational sociology--Great Britain.
Educational sociology--United States.
Teacher-student relationships--Great Britain.
Teacher-student relationships--United States.