Sanders,Donald H. <br/><br/>
Computers in Business 

 - 4th ed. 
 - USA  MxcGraw-Hill  1979 
 - xxi, 543p. 
<br/><br/><label>ISBN: </label>717285111 
<br/><br/><label>Dewey Class. No.: </label>658.05  / SAN/COM