Birkel, Dee Ann. <br/><br/>
Forever fit :  a step-by-step guide for older adults / 
Dee Ann Birkel and Susan Birkel Freitag. 
 - New York :  Plenum Press,  c1991. 
 - xiv, 312 p. :  ill. 
<br/><br/> "Insight books." 
<br/><br/><label>ISBN: </label>0306439697 
<br/><br/><label>LCCN: </label>92035014     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical fitness for the aged.<br/>Exercise--in old age.<br/>Health Promotion.<br/>Physical Fitness.