Yusuf, Shahid <br/><br/>
About urban mega regions: knowns and unknowns 

 - Washington DC  World Bank  2007 
 - 23 p.  See WB 332.1532 PAT (Includes Acc. Nos. 33469, 33470, 33471, 33472 & 33473) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECONOMICS