Columbia subject headings:
Evaluation research (Social action programs)--Periodicals.
Social sciences--Methodology--Periodicals.
Social sciences--Research--United States--Periodicals.
Harvard subject headings:
Evaluation research (Social action programs)--Periodicals.
Social sciences--Methodology--Periodicals
Social sciences--Research--United States--Periodicals.
Princeton subject headings:
Evaluation research (Social action programs)--Periodicals.
Periodicals.
Social sciences--Methodology--Periodicals.
Social sciences--Research--United States--Periodicals.