Columbia subject headings:
Harvard subject headings:
Income maintenance programs--Colorado--Denver.
Income maintenance programs--Washington (State)--Seattle.
Labor supply--Effect of income maintenance programs on--Colorado--Denver.
Labor supply--Effect of income maintenance programs on--Washington (State)--Seattle.
Princeton subject headings:
Income maintenance programs--Colorado--Denver.
Income maintenance programs--Washington (State)--Seattle.
Labor supply--Colorado--Denver--Effect on income maintenance programs on.
Labor supply--Washington (State)--Seattle--Effect of income maintenance programs on.