Apha <br/><br/>
Standard methods for the examination of water and waste water / 

 - 22 
 - Washington:  American public heath association,  2012 
 - 2000 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civil
<br/><br/><label>Dewey Class. No.: </label>628.3  / APH/S