Yanker, Gary. <br/><br/>
The complete book of exercisewalking / 
Gary D. Yanker. 
 - Chicago :  Contemporary Books,  c1983. 
 - xx, 266 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0809255359 (pbk.) : 
<br/><br/><label>Dewey Class. No.: </label>613