Não informado. (1996). Emerging Technology Series. United Nations, Industrial Development Organization.
Chicago-referens (17:e uppl.)Não informado. Emerging Technology Series. Vienna: United Nations, Industrial Development Organization, 1996.
MLA-referens (8:e uppl.)Não informado. Emerging Technology Series. United Nations, Industrial Development Organization, 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.