DasGupta, <br/><br/>
A Study of Patanjali  Textual Documents 
Surendranath DasGupta 
 - 3rd ed. 
 - New Delhi  Indian council of philosophical research  2001 
 - pg181:  20cm. 
<br/><br/><label>ISBN: </label>8185636494 
<br/><br/><label>Subjects--Index Terms: </label>Philosophy G- Philosophy 
<br/><br/><label>Dewey Class. No.: </label>181.452