Coulter, John Merle., Barnes, Charles Reid., and Cowles, Henry Chandler. <br/><br/>
A Text Book of Botany 
VOLUME 2 PHYSIOLOGY 
 - Calcutta  The World Press Private Ltd  1957 
 - 307 
<br/><br/><label>Subjects--Personal Names: </label> Botany 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany