Davidson, Ralph Howard <br/><br/>
Insects pests of farm, garden and orchard  / 
by Ralph Howard Davidson 
 - 6a. 
 - New York  :   John Wiley & sons 
 - 675 p. 
<br/><br/><label>LCCN: </label>200526 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura -- plagas<br/>Entomología económica 
<br/><br/><label>Dewey Class. No.: </label>PA 632.7 D8