Chopra, G.L. <br/><br/>
A Class Book of Gymnosperms 

 - 4 
 - New Delhi  S.Nagin & Co., Educational Publishers   1972 
 - 186 
<br/><br/><label>Publisher. No.: </label> Atma Stores  
<br/><br/><label>Subjects--Personal Names: </label> Botany 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany