Clausen, C. P.  1893- <br/><br/>
Entomophagous insects / 
by Curtis P. Clausen 
 - New York :  Hafner Publishing Company,  1972 
 - x, 688 p.:  ill. ;  24 cm. 
<br/><br/><label>LCCN: </label>62-011041 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insect pests--Biological control<br/>Insects--Biology