Não informado. (1970). Guide to UNCTAD Publications. United Nations Conference on Trade and Development.
Chicago-referens (17:e uppl.)Não informado. Guide to UNCTAD Publications. Geneva, Suíça: United Nations Conference on Trade and Development, 1970.
MLA-referens (8:e uppl.)Não informado. Guide to UNCTAD Publications. United Nations Conference on Trade and Development, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.