African statistical yearbook. - Addis Ababa : Economic Commission for Africa, United Nations. - v. : - This library has : 1984, 1985, 1986, 1987, 1990-91, 1992-93, 1996, 1998, 1999, 2000, 2001, 2002 . ISBN: GOVT593 Dewey Class. No.: 316 / Af