Coppel, Harry Charles,  1918- <br/><br/>
Biological insect pest suppression 
Harry C. Coppel, James W. Mertins 
 - Berlin  Springer-Verlag  1977 
 - xiii, 314 p.  ill  24 cm. 
 - Advanced series in agricultural sciences  4 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insect pests--Biological control
<br/><br/><label>Dewey Class. No.: </label>632  / .7