Heber, Gabriel. <br/><br/>
Simple methods for the treatment of drinking water./ 
by Gabriel Heber. 
 - Lengerich:  Friedr:  1985. 
 - 79p.,  ill.; 
<br/><br/><label>ISBN: </label>3528020210 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water treatment.
<br/><br/><label>Dewey Class. No.: </label>363.61