Bhatnagar, S P, <br/><br/>
Gymnosperms. 
by S P Bhatnagar 
 - 1st ed. 
 - New Delhi:  New age international Pvt Ltd publishers,  2013. 
 - 470p.:  23cm. 
<br/><br/>Bibliography, Index. 
<br/><br/><label>ISBN: </label>9788122407921 
<br/><br/><label>Subjects--Index Terms: </label>Gymnosperms conifers, Botany 
<br/><br/><label>Dewey Class. No.: </label>585