Digest, reader's <br/><br/>
Keeping Fit / 
Reader's Digest 
 - New York :  Berkley Books,  1981. 
 - 262 p. 
<br/><br/><label>ISBN: </label>0425050173 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical fitness
<br/><br/><label>Dewey Class. No.: </label>613.7 REA