Muller, J. P. <br/><br/>
My system:  15 minutes work a day for healthy's sake 

 - London  Athentic Publications  n.d. 
 - 121 
<br/><br/> With 120 illustrations 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Exercises<br/>Physical education
<br/><br/><label>Dewey Class. No.: </label>613.7  / M912m