Tantra Yoga, Nada Yoga Kriya Yoga  English 
Swami Sivananda 
 - 4th 
 - Shivanandanagar (UP)  A Divine Life Society Publications  1994 
 - 162 
<br/><br/><label>ISBN: </label>8170520428 
<br/><br/><label>Dewey Class. No.: </label>294.5514 SIV  / 6542