Hall, Ralph C <br/><br/>
Control of the locust borer  / 
by Ralph C. Hall 
 - Washington  :   Departament de Agriculture 
 - 19 p. 
 - EUA. Dept. of Agriculture Circular; 626 .
<br/><br/><label>LCCN: </label>202907 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cyllene robiniae  Control de plagas