Perry Susan <br/><br/>
Be at your best when it really counts :  setting your body clocks for maximum energy and health / 
Susan Perry and Jim Dawson 
 - Wellingborough :  Thorsons,  1990. 
 - 260 p. ;  21 cm. 
<br/><br/><label>ISBN: </label>0722522061 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological rhythms
<br/><br/><label>LC Class. No.: </label>BF637.B55 
<br/><br/><label>Dewey Class. No.: </label>612/.022