Walton, W. R <br/><br/>
The Hessian fly  :   and how to prevent losses From it  / 
W. R. Walton 
 - Washington  :   Department of Agriculture 
 - 16 p. 
 - EUA. Dept. of Agriculture Farmers' bull.; 1083 .
<br/><br/><label>LCCN: </label>203745 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phytophaga destructor  Trigo -- Plagas