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

 - New York  McGraw -Hill  1950 
 - 699 p.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant diseases Vegetable pathology
<br/><br/><label>Universal Decimal Class. No.: </label>632 WAL  / 5313