00609cam a22001457a 4500008004000000082001400040100002400054245015700078260004300235300000900278440007500287650003800362650004200400700002100442180718b1991   xxu||||| |||| 00| 0 eng d  aWx67 R526  aRiverson, John D.N.  aIntermediate means of transport in Sub-Saharan Africa: its potential for improving rural travel and transportcby John D.N. Riverson and Steve Carapetis  aWashington, D.C.bThe World Bankc1991  a27p.  aWorld bank technical paper; no.161, Africa technical department series  aRural Roads - Africa, Sub-Saharan  aRural Transport - Africa, Sub-Saharan  aCarapetis, Steve