Buys, Piet Deichmann, Uwe Wheeler, David <br/><br/>
Road network upgrading and overland trade expansion in Sub -Ssaharan Africa 

 - Washington  World Bank  2006 
 - 58 
 - Policy research working paper4097 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing<br/>Transport