Biological control in crop production / 
[general editor, George C. Papavizas]. 
 - Totowa, N.J. :  London :  Allanheld, Osmun ;  Granada,  1981. 
 - ix, 461 p. :  ill. ; 
<br/><br/> Papers presented at an annual symposium organized by BARC Symposium V Committee; sponsored by and held at Beltsville Agricultural Research Center, Md., May 18-21, 1980. 
<br/><br/><label>ISBN: </label>0865980373 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pests<br/>Plants, Protection of--Biological control--Congresses.--Congresses.
<br/><br/><label>Dewey Class. No.: </label>G:54p73,N80  / M1