Dufour AL Snozzi Mario  <br/><br/>
Assessing Microbial Safety of Drinking Water Improving Approaches and Methods 

 -  WHO  2003 
 - 1-293pgs 
 - Water microbiology 
<br/><br/><label>ISBN: </label>92 4 154630 1 
<br/><br/><label>Nat. Bib. No.: </label>003868 
<br/><br/><label>Dewey Class. No.: </label>351.778.31 A77