Columbia subject headings:
Adult education--United States--States--Statistics.
Juvenile corrections--United States--States--Statistics.
Vocational education--United States--States--Statistics.
Harvard subject headings:
Adult education--United States--States--Statistics.
Juvenile corrections--United States--States--Statistics.
Vocational education--United States--States--Statistics.
Princeton subject headings:
Adult education--United States--States--Statistics.
Juvenile corrections--United States--Statistics.
Statistics.
Vocational education--United States--States--Statistics.