Robert E. Wagner;  <br/><br/>
Guide to environmental analytical methods 

 - 4th ed. 
 - USA<br/>  Genium Publishing Corporation  1998 
 - G1p. 
<br/><br/><label>ISBN: </label>1890911062 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Dewey Class. No.: </label>333.7  / GUI