TY - BOOK AU - United Nations. Economic Commission for Africa TI - Survey of economic and social conditions in Africa, 1984-1985 : Twenty-first session of the Commission and twelfth meeting of the Conference of Ministers : Yaounde, Cameroon, 17-21 April 1986 PB - United Nations PY - 1987 EP - iv, 72 p. UR - https://ci.nii.ac.jp/ncid/BB08869405 ER -