Columbia subject headings:
Education--United States--Statistics--Congresses.
Educational statistics--Congresses.
National Center for Education Statistics--Congresses.
Harvard subject headings:
Education--United States--Statistics--Congresses.
Educational statistics--Congresses.
National Center for Education Statistics--Congresses.
Princeton subject headings:
Education--United States--Statistics--Congresses.
Educational statistics--Congresses.
National Center for Education Statistics--Congresses.