Whipple, George Chandler. <br/><br/>
The microscopy of drinking water 

 - 4 ed. 
 - New York :  Wiley,  1954 (c.1941) 
 - 585 p.  : ilus. 
<br/><br/><label>LCCN: </label>53692 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agua--Análisis.
<br/><br/><label>Dewey Class. No.: </label>628.16  / W45