Biological crop protection / 
Patrick Fox 
 - 109 p. :  Otros ;  28 cm. 
 - Agrow .
<br/><br/><label>Subjects--Topical Terms: </label><br/>CONTROL BIOLOGICO--COMPANIAS--DIRECTORIO
<br/><br/><label>Dewey Class. No.: </label>C 632.96  / B5 1989