Hayward, Herman E. <br/><br/>
The Structure of economic plants  Herman E. Hayward. 

 - New York  Mac Millan  1938 
 - x, 674p.: ill. 24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plants, useful Botany, Economic. 
<br/><br/><label>Dewey Class. No.: </label>581.61  / H45S