Botany  principels and probmems 

 - New York  McGraw-Hill  1946 
 - 720 
<br/><br/> Zb mean Botany Page 500-509 (Acc. No. Zb1-Zb343) & Page 578-581 (Acc. No. Zb344-Zb468) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Dewey Class. No.: </label>Zb455