Walker, J.C.  <br/><br/>
Plant pathology  (Book) 

 - 3rd ed. 
 - New York  McGraw-Hill  1969 
 - 819 p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant diseases
<br/><br/><label>Universal Decimal Class. No.: </label>632 WAL  / 3897