Columbia subject headings:
Labor mobility--Japan--Statistics--Periodicals.
Labor supply--Japan--Statistics--Periodicals.
Working class--Japan--Statistics--Periodicals.
Harvard subject headings:
Labor mobility--Japan--Statistics--Periodicals.
Labor supply--Japan--Statistics--Periodicals.
Working class--Japan--Statistics--Periodicals.
Princeton subject headings:
Labor mobility--Japan--Statistics--Periodicals.
Labor supply--Japan--Statistics--Periodicals.
Labor supply--Japan--Statistics.
Labor--Japan--Statistics--Periodicals.
Labor--Japan--Statistics.
Periodicals.
Statistics.
Working class--Japan--Statistics--Periodicals.