Root, Leon. <br/><br/>
No more aching back :  Dr. Root's new fifteen-minute-a-day program for a healthy back / 
Leon Root ; illustrations by Elisa Root. 
 - New York :  Penguin,  1991. 
 - xx, 220 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0451170911 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Backache.<br/>Backache--Exercise therapy.<br/>Backache--Prevention.
<br/><br/><label>LC Class. No.: </label>RD771.B217  / R66 1991