Columbia subject headings:
High school graduates--Employment--United States--Longitudinal studies.
Youth--Employment--United States--Longitudinal studies.
Harvard subject headings:
High school graduates--Employment--United States--Longitudinal studies.
Youth--Employment--United States--Longitudinal studies.
Princeton subject headings:
High school graduates--Employment--United States--Longitudinal studies.
Youth--Employment--United States--Longitudinal studies.