NCR :  EDP concepts course / 
by NCR corporation 
 - Indiana :  Howard W. Sams and Co.,  1979 
 - 509 p.  :  ill. ;  24 cm. 
 - The Blacksburg continuing education series .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0672215918 
<br/><br/><label>LCCN: </label>79-063818 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing<br/>Computers