Concessions for infrastructure :  a guide to their design and award / 
Michel Kerf...[et. al.] 
 - Washington D.C. :  World Bank,  1998 
 - x, 132 p. 
 - World Bank technical papers ;  399 .
<br/><br/><label>ISBN: </label>0821341650 
<br/><br/><label>LC Class. No.: </label>CD F 00378