Sri Aurobindo. <br/><br/>
Sri Aravinda Ke Patra Part 3 (Hindi): Translated from LEtters on Yoga 

 - New Delhi:  World Association Vedis Studies,  2010. 
<br/><br/><label>ISBN: </label>9788170587439 
<br/><br/><label>Dewey Class. No.: </label>181.45  / AUR