Davidson, Ralph Howard <br/><br/>
Insect pests of farm, garden, and orchard 
Ralph Howard Davidson, Leonard Marion Peairs 
 - 6th ed 
 - New York  Wiley  c1966 
 - ix, 675 p.  ill.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insect pests