Wren , R C <br/><br/>
Encyclopedia of botanical drugs and preparations 

 - 3rd ed 
 - Nnw Delhi  Cosmo publication  2007 
 - 392p. 
<br/><br/><label>ISBN: </label>81-292-0162-3 
<br/><br/><label>Dewey Class. No.: </label>615.32103  W925E