Nyvall, Robert F. <br/><br/>
Field crop diseases handbook 

 - Westport, Conn. :  AVI,  1979 
 - 436 p.  : ilus. 
 - AVI sourcebook and handbook series .
 - AVI sourcebook and handbook series .
<br/><br/><label>LCCN: </label>33325 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivos--Enfermedades.<br/>Cultivos--Plagas.<br/>Fitopatología.
<br/><br/><label>Dewey Class. No.: </label>632  / N9