Methods for chemical analysis of water and wastes  / 
Environmental Protection Agency 
 - [p.varia] 
<br/><br/><label>LCCN: </label>TIPO-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Analisis del agua<br/>Desperdicios - Analisis químico<br/>Proteccion del medio ambiente
<br/><br/><label>Dewey Class. No.: </label>363.7  / U58m