Knowles, William P. <br/><br/>
New Life Through Breathing 
/ by William P. Knowles 
 - London:  George Allen & Unwin Ltd,  1968. 
 - 144p.; 
<br/><br/><label>ISBN: </label>000 
<br/><br/><label>Dewey Class. No.: </label>613.7  / KNO/N