Beltsville Symposia in Agricultural Research (5: 1980: Maryland) <br/><br/>
Biological control in crop production  / 
The BARC symposium committee, George C. Papavizas 
 - London  :   Granada 
 - 461 p. 
 - Previous symposia in this series; 5 .
<br/><br/><label>LCCN: </label>201195 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Control biológico de plagas  Control biológicio de malas hierbas  Control biológico de insectos
<br/><br/><label>Dewey Class. No.: </label>PA 632.96 B4 1980