Pande J K <br/><br/>
On the choice of the reference period by 

 - Allahabad  The Author India      
 - 138p.  cm. 
 - Its Bulletin.61 .
<br/><br/><label>Standard No.: </label>34537 
<br/><br/><label>Source: </label> Reports 
<br/><br/><label>Dewey Class. No.: </label>"X.252.N6s, GD"