Birbal Sahni Institute of Palaeobotanist <br/><br/>
The Palaeobotinist Vol 9 1- 2 

 -  Birbal Sahni Inst, Lucknow 
 - pp 106;   25*18 
<br/><br/><label>Dewey Class. No.: </label>I:8m2,N52/N60.9/B07401