American Telephone And Telegraph Company. <br/><br/>
The Trainer'S Library : Developing Training Media. 

 -  Addison-Wesley  1987 
<br/><br/> 7 VOLS. 28 CM. 
<br/><br/>PEMBEKAL:KOP.KEDAI BUKU UM/NO.LO. 
<br/><br/><label>ISBN: </label>201126354 
<br/><br/><label>Dewey Class. No.: </label>R 658.3124 TRA 1987 V.4 C.1