Gupta Shakti M <br/><br/>
Birbal sahni 

 - New Delhi  National Book Trust      1978 
 - 87p.  cm. 
<br/><br/><label>Standard No.: </label>68955 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleobotany
<br/><br/><label>Dewey Class. No.: </label>I:8wM91, L8;1