LEONARD. K. J; WILLIAM .F RY <br/><br/>
Plant diesease epidemiology 

 -  1986  Macmilan India Ltd. 
 - 372  0  Paper 
<br/><br/> Paper Back 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diseases
<br/><br/><label>Dewey Class. No.: </label>J:4     M6