Columbia subject headings:
College attendance--United States--Statistics--Periodicals.
College students--Employment--United States--Statistics--Periodicals.
High school dropouts--Employment--United States--Statistics--Periodicals.
High school graduates--Employment--United States--Statistics--Periodicals.
Harvard subject headings:
College attendance--United States--Statistics--Periodicals.
College students--Employment--United States--Statistics--Periodicals.
High school dropouts--Employment--United States--Statistics--Periodicals.
High school graduates--Employment--United States--Statistics--Periodicals.
Princeton subject headings: