IBM 3270 information display system 3279/3278/3276/3274 I0104  operation training textbook / 
IBM. 
 - White Plains, N.Y. :  International Business Machines Corporation,  1980. 
 - 44p. in various pagings :  ill. ;  30cm. 
<br/><br/> 'Independent study program'.  'SR20-7385-0'. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>IBM 3270 (Computer)<br/>Information display systems<br/>Electronic digital computers