APA
Economic Commision for Africa, . (2011). Minerals and Africa's development. Addis Ababa, Ethiopia: United Nations Economic Commision for Africa.
Chicago
Economic Commision for Africa, . 2011. Minerals and Africa's development. Addis Ababa, Ethiopia: United Nations Economic Commision for Africa.
Harvard
Economic Commision for Africa, . (2011). Minerals and Africa's development. Addis Ababa, Ethiopia: United Nations Economic Commision for Africa.
MLA
Economic Commision for Africa, . Minerals and Africa's development. Addis Ababa, Ethiopia: United Nations Economic Commision for Africa. 2011.