Chakravarty, Apurba Kumar. <br/><br/>
Origin and development of Indian calendrical science / 
Apurba Kumar Chakravarty. 
 - Calcutta :  R. K. Maitra for 'Indian Studies ;  1975. 
 - 62 p. : 
<br/><br/><label>ISBN: </label>866 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calendar, Hindu
<br/><br/><label>Dewey Class. No.: </label>529.3454  / Or