Yepsen, Roger B., Jr. <br/><br/>
Organic plant protection  : a comprehensive reference on controlling insects and diseases... 

 - Emmaus, Pa. :  Rodale,  1976 
 - 688 p.  ; láms. : ilus. 
<br/><br/><label>LCCN: </label>55392 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Control biológico de plagas.<br/>Plantas--Resistencia a plagas.
<br/><br/><label>Dewey Class. No.: </label>632.96  / Y4