Não informado. (1989). UNCTAD review. United Nations Conference on Trade and Development.
Chicago-Zitierstil (17. Ausg.)Não informado. UNCTAD Review. Geneva, Suíça: United Nations Conference on Trade and Development, 1989.
MLA-Zitierstil (8. Ausg.)Não informado. UNCTAD Review. United Nations Conference on Trade and Development, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.