Biswas, Chhaya <br/><br/>
The gymnosperms  
/ by Chhaya Biswas,  B M Johri 
 - New Delhi:    Narosa Publishing House;   1997.  
 - xxi,494p. 
<br/><br/><label>ISBN: </label>81-7319-080-1 
<br/><br/><label>Dewey Class. No.: </label>585   / BIS/T