Methods for chemical analysis of water and wastes /  
U. S Environmental Protection Agency 
 - Cincinnati,  Environmental Protection Agency, Analytical Quality Control Laboratory; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington]  1971. 
 - xvii, 298 p. ;  illus.  28 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9781289181666 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Analysis.<br/>Sewage--Analysis.
<br/><br/><label>Dewey Class. No.: </label>628.161  / MET