Manual of chemical methods for pesticides and devices / 
U.S. Environmental Agency 
 - 2nd ed. 
 - Arlington, VA. ;  AOAC International,  1992? 
 - Various pagings. ;  26 cm. 
<br/><br/><label>ISBN: </label>0935584471 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pesticides--Analysis<br/>Agricultural chemicals--Analysis