Columbia subject headings:
Labor supply--European Economic Community countries--Statistics.
Labor supply--Japan--Statistics.
Labor supply--United States--Statistics.
Harvard subject headings:
Labor supply--European Economic Community countries--Statistics.
Labor supply--Japan--Statistics.
Labor supply--United States--Statistics.
Princeton subject headings:
Labor supply--European Economic Community countries--Statistics.
Labor supply--Japan--Statistics.
Labor supply--United States--Statistics.
Statistics.