WALKER, John Charles <br/><br/>
Plant pathology 

 - 3rd ed. 
 - New York  McGraw- Hill  1969 
 - xi, 819 p. 
<br/><br/><label>ISBN: </label>50335 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant diseases
<br/><br/><label>Dewey Class. No.: </label>632.3  / WAL