Davidson, Ralph Howard <br/><br/>
Insect pests of farm, garden, and orchard / 
 6th ed. 
Ralph Howard Davidson and Leonard Marion Pearis 
 - New York :  John Wiley & Sons,    c1966 
 - 649 p. :  ill. ;  19 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insect pests<br/>Beneficial insects
<br/><br/><label>Dewey Class. No.: </label>632.7  / DAI 1966