Titus, J.A. <br/><br/>
TRS-80 interfacing  BK.2. 

 - Indiana  Howard W. Sams & Co.Inc  1982 
 - 254p.  20cm. 
<br/><br/> Dormitory 
<br/><br/><label>Dewey Class. No.: </label>621.38195  / T54T