Columbia subject headings:
Contract labor--Germany.
Contract labor--Mozambique.
Germany--Foreign economic relations--Mozambique.
Mozambique--Foreign economic relations--Germany.
Harvard subject headings:
Contract labor--Germany (East)--History--Congresses.
Contract labor--Mozambique--History--Congresses.
Germany (East)--Foreign economic relations--Mozambique--Congresses.
Mozambique--Foreign economic relations--Germany (East)--Congresses.
Princeton subject headings:
Contract labor--Germany.
Contract labor--Mozambique.
Germany--Foreign economic relations--Mozambique.
Mozambique--Foreign economic relations--Germany.