Stevens , F.L;Hall, J. G <br/><br/>
Diseases Of Economic Plants 
F.L. stevens ;J.G Hall 
 - New York  The Macmillan Company  1926 
 - 507pages 
<br/><br/> Zb mean Botany Page 500-509 (Acc. No. Zb1-Zb343) & Page 578-581 (Acc. No. Zb344-Zb468) 
<br/><br/><label>Dewey Class. No.: </label>Zb108