Zemke, Ron. <br/><br/>
Figuring Things Out : A Trainer'S Guide To Needs And 

 -  Addison-Wesley  1982 
 - XII, 348 P. 29 CM. 
<br/><br/><label>ISBN: </label>201090988 
<br/><br/><label>Dewey Class. No.: </label>658.312404 ZEM 1982 C.1