Papavizas, George C <br/><br/>
Biological control in crop production 

 - New Jersey  Allanheld, Osmun & Co.  1981 
 - 491 p. 
 - Beltsville symposia in agricultural research .
<br/><br/><label>ISBN: </label>0865980373 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological control
<br/><br/><label>Dewey Class. No.: </label>632.96  / BIO