Hilditch, Graeme,  <br/><br/>
Is it just me or are sit-ups a waste of time? 

 - xi, 258 pages ;   20 cm 
<br/><br/><label>ISBN: </label>9781844544981 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical fitness
<br/><br/><label>Dewey Class. No.: </label>613.7