Ehlers, Victor M <br/><br/>
Municipal and rural sanitation 

 - 6th ed. 
 - New York  MacGraw-hill  1958 
 - xiv, 663 p.  Illustration 
 - Graw-Hill Series in  Sanutary Science and Water ResourcesS Enginerrin .
<br/><br/><label>ISBN: </label>0700190895 
<br/><br/><label>Dewey Class. No.: </label>363.7  / E34