Thresh, John C. <br/><br/>
A The Examination of Waters and Water Supplies/ 
By John C. Thresh 
 - 2nd ed. 
 - vi, 644 pages:  ills., plates  24cm. 
<br/><br/> Include an index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water Supply
<br/><br/><label>LC Class. No.: </label>HD1635