Proceedings of the Joint American-Soviet Conference on Use of Beneficial Organisms in the Control of Crop Pests, Washington, D.C., August 13-14, 1979 / 
 Use of beneficial organisms in the control of crop pests 
[edited by] Jack R. Coulson 
 - Maryland :  Entomological Society of America ,  1981 
 - 62 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>0938522086  RM20.05 
<br/><br/><label>LCCN: </label>81-068052 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural pests--Biological control<br/>Plants, Protection of<br/>Pests--Biological control