World Health  Organiszation <br/><br/>
Global water supply and sanitation assessment 2000 report 

 - World Health  Organiszation, Geneva  2000 
 - viii,80 
<br/><br/><label>ISBN: </label>82-4-156202-1 
<br/><br/><label>Dewey Class. No.: </label>363.61021 W.H.O.