00439pab a2200133 454500008004000000100002100040245009800061260000900159300001500168650003500183650003200218650002200250773003300272180718b2010   xxu||||| |||| 00| 0 eng d  aOkpala, Don C.I.  aRegional development planning in Nigeria: The genesis and historical evolution of the process  c2010  ap.137-151.  aRegional development - Nigeria  aRegional planning - Nigeria  aRegional planning  aRegional Development Studies