Herrick, Glenn W. <br/><br/>
Control of two elm-tree pests 

 - Ithaca, N.Y. :   Cornell University 
 - 21 p. 
<br/><br/><label>LCCN: </label>199125 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Olmo -- plagas