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Rapport sur l'industire minière de l'Afrique Centrale
“Nations Unies Commission Economique pour l'Afrique Centre de Développement Sous-Régional pour l'Afrique du Centre(CDSR-AC) (1998). Rapport sur l'industire minière de l'Afrique Centrale. Addis Abeba :. © UN. ECA,. http://hdl.handle.net/10855/4868”
The present situation with respect to the new metals and minerals : submitted by the government of United Arab Republic
“United Nations. Economic and Social Council; United Nations. Economic Commission for Africa (1967-12). The present situation with respect to the new metals and minerals : submitted by the government of United Arab Republic. UN. ECA Seminar on New Metals and Minerals (1968, Feb. 5 - 10 : Addis Ababa, Ethiopia).. Addis Ababa :. © UN. ECA,. http://hdl.handle.net/10855/11987”
Inventory of mineral resources in Benin
“United Nations. Economic Commission for Africa; Government of Benin (1980-12). Inventory of mineral resources in Benin. UN. ECA Regional Conference on the Development and Utilization of Minieral Resouces in Africa (1981, Feb. 02 - 06 : Arusha, Tanzania). Addis Ababa :. © UN. ECA,. http://hdl.handle.net/10855/7537”
Some methods of obtaining niobium and tantalum and their usage
“United Nations. Economic and Social Council; United Nations. Economic Commission for Africa (1968-02). Some methods of obtaining niobium and tantalum and their usage. UN. ECA Seminar on New Metals and Minerals (1968, Feb. 5 - 10 : Addis Ababa, Ethiopia).. Addis Ababa :. © UN. ECA,. http://hdl.handle.net/10855/12255”
République Arabe Unie: situation actuelle dans le domaine des métaux et minéraux nouveaux
“Nations Unies. Commission Economique pour l'Afrique; Nations Unies. Conseil Economique et Social (1968-01). République Arabe Unie: situation actuelle dans le domaine des métaux et minéraux nouveaux. NU. CEA Cycle d'études sur les métaux et minéraux nouveaux (1968, fév. 5 - 10 : Addis Abeba, Ethiopie).. Addis Abeba :. © UN. ECA,. http://hdl.handle.net/10855/11955”
Beryllium, columbium, rare earths, tantalum, titanium, yttrium and zirconium in Uganda : submitted by the Government of Uganda
“United Nations. Economic and Social Council; United Nations. Economic Commission for Africa (1968-01). Beryllium, columbium, rare earths, tantalum, titanium, yttrium and zirconium in Uganda : submitted by the Government of Uganda. UN. ECA Seminar on New Metals and Minerals (1968, Feb. 5 - 10 : Addis Ababa, Ethiopia).. Addis Ababa :. © UN. ECA,. http://hdl.handle.net/10855/11921”
Isolation of some rare metals
“United Nations. Economic and Social Council; United Nations. Economic Commission for Africa (1968-01). Isolation of some rare metals. UN. ECA Seminar on New Metals and Minerals (1968, Feb. 5 - 10 : Addis Ababa, Ethiopia).. Addis Ababa :. © UN. ECA,. http://hdl.handle.net/10855/12172”
The outlook for pyrochlore concentrates : a review
“United Nations. Economic and Social Council; United Nations. Economic Commission for Africa (1968-02). The outlook for pyrochlore concentrates : a review. UN. ECA Seminar on New Metals and Minerals (1968, Feb. 5 - 10 : Addis Ababa, Ethiopia).. Addis Ababa :. © UN. ECA,. http://hdl.handle.net/10855/12289”
A report on economic co-operation in Africa
“United Nations. Economic and Social Council; United Nations. Economic Commission for Africa (1977-01). A report on economic co-operation in Africa. UN.ECA Conference of Ministers on economic cooperation (13th: 1977, 24, Feb- 3, Mar : Kinshasa, Democratic Republic of Congo); UN. ECA Executive Committee Meeting (16th : 1977 Feb 21-22 : Kinshasa, Democratic Republic of Congo ). Addis Ababa:. © UN.ECA,. http://hdl.handle.net/10855/5999”
Mission report concerning the Eastern and Southern African Mineral Resources Development Centre (ESAMARDC)
“United Nations. Economic Commission for Africa; Mineral Resources Unit (1992-03). Mission report concerning the Eastern and Southern African Mineral Resources Development Centre (ESAMARDC). Addis Ababa :. © UN.ECA,. http://hdl.handle.net/10855/6061”