Biological control in crop production / 
[general editor, George C. Papavizas]. 
 - Totowa, NJ : London :  Totowa, NJ : London :  Allanheld, Osmun ; Granada,  Allanheld, Osmun ; Granada,  1981. 
 - Beltsville symposia in agricultural research ;  5 .
<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/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>LCCN: </label>81065017 //r86 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pests -- Biological control -- Congresses.--Pests -- Biological control -- Congresses.--Pests -- Biological control -- Congresses.<br/>Plants, Protection of -- Congresses.--Plants, Protection of -- Congresses.
<br/><br/><label>LC Class. No.: </label>SB975  / .B56 
<br/><br/><label>Dewey Class. No.: </label>632/.96