Bhatnagar,S.P <br/><br/>
Gymnosperms 

 - 3rd Edition 
 - New Delhi  New age international  2024 
 - 473p. 
<br/><br/><label>ISBN: </label>9789360740511 
<br/><br/><label>Dewey Class. No.: </label>585  / BHA/G