Assessing Microbial Safety Of Drinking Water:  Improving Approaches and Methods 
Edited by Al Dufour,Mario Snozzi.Wolfgang Koster 
 - Geneva  World Health Organizations,OECD  2003 
 - 295p. 
<br/><br/> H.B 
<br/><br/><label>ISBN: </label>8174732640 
<br/><br/><label>Dewey Class. No.: </label>363.61 ALF