S P E S W <br/><br/>
Poceeding on pesticides and their effects on soils and water 
S P E S W 
 -  1966 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>52288 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J:438p1,N65, K6