Columbia subject headings:
Children--United States--States--Statistics--Periodicals.
Families--United States--States--Statistics--Periodicals.
Teenagers--United States--States--Statistics--Periodicals.
Harvard subject headings:
Children--United States--States--Statistics--Periodicals.
Families--United States--States--Statistics--Periodicals.
Teenagers--United States--States--Statistics--Periodicals.
Princeton subject headings:
Children--United States--States--Statistics--Periodicals.
Families--United States--States--Statistics--Periodicals.
Periodicals.
Statistics.
Teenagers--United States--States--Statistics--Periodicals.