Columbia subject headings:
Harvard subject headings:
Contract system (Labor)--Germany.
Temporary employees--Germany--Social conditions.
Temporary employees--Germany.
Temporary employment--Germany.
Temporary employment--Social aspects--Germany.
Princeton subject headings:
Contract system (Labor)--Germany.
Temporary employees--Germany--Social conditions.
Temporary employees--Germany.
Temporary employment--Germany--Social aspects.
Temporary employment--Germany.