00286nam a2200097Ia 4500008004100000040004400041100002000085245004500105260002500150300001300175180412s9999||||xx |||||||||||||| ||und||  aAhmadu Bello University Library - Zaria  aUNITED NATIONS. 0aDemographic evaluation and analysis of p  aNew YorkbU.N.c1980  aiv, 30p.