IBM 4300 processors for operators I0089 :  study guide / 
IBM. 
 - White Plains, N.Y. :  International Business Machines Corporation,  1981 
 - 243 p. in various pagings :  ill. ;  30cm. 
<br/><br/> 'Operator training library'  'Independent study program'  'SR20-7348-1' 
<br/><br/><label>Subjects--Topical Terms: </label><br/>IBM 4300.<br/>Electronic digital computer--Programming.<br/>Electronic data processing.