DeWitt, J B <br/><br/>
The validity of pesticide "values".  [electronic resource] 

 -  Pesticides monitoring journal  Dec 1968 
 - 103 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0031-6156 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pesticides--toxicity