Columbia subject headings:
Harvard subject headings:
Labor supply--South Africa--Statistics--Periodicals.
Occupations--South Africa--Statistics--Periodicals.
Unemployment--South Africa--Statistics--Periodicals.
Working class--Statistics--South Africa--Working class--Statistics--Periodicals.
Princeton subject headings:
Labor supply--South Africa--Statistics--Periodicals.
Occupations--South Africa--Statistics--Periodicals.
Unemployment--South Africa--Statistics--Periodicals.
Working class--South Africa--Statistics--Periodicals.