Standard Methods  For the examination of water and wastewater 
ed by Andrew D Eaton, et al 
 - 21st ed 
 - Washington  American public Health Association  2005 
 - xxxvi, Sectional 
<br/><br/><label>ISBN: </label>0875530478 
<br/><br/><label>Dewey Class. No.: </label>628.74  / P05