00317nam a22001097a 450000500170000000800410001705000240005810000150008224500400009726000500013730000200018720260326130255.0260326b        |||||||| |||| 00| 0 eng d  aDQ841.F6.18.00 1979  aB.O. Ukeje  aFoundation of EducationcB.O. Ukeje  aNigeriabEthiope publishing corporationc1979  axiv, 401p.bHbk