The soybean cyst nematode. 

 - [Rev.] 
 - Washington,  U.S. Dept. of Agriculture  [1966] 
 - [4] p.  illus.  24 cm. 
 - [United States. Dept. of Agriculture] PA  333 .
 - [United States.  Department of Agriculture]  PA  333. .
 - Program aid (United States. Department of Agriculture) ;  no. 333. .
<br/><br/><label>LCCN: </label>agr66000251  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soybean cyst nematode.<br/>Heterodera glycines.
<br/><br/><label>LC Class. No.: </label>S21  / .A856 no. 333 
<br/><br/><label>National Agricultural Library Call No.: </label>1 Ag84Pro no. 333 1966