Swami Ramdev <br/><br/>
Prāṇāyāma rahasya : secrets of Prāṇāyāma, with scientific factual evidence 

 - 1st ed 
 - Hardwar  Divya Prakashan  2009 
 - 124 p. 
<br/><br/><label>ISBN: </label>8904049800077 
<br/><br/><label>Dewey Class. No.: </label>613.7046