Walton, T.F.  <br/><br/>
Communications and data management  (Book) 

 - New York  Wiley  1976 
 - 284 p.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business--data processing Database management
<br/><br/><label>Universal Decimal Class. No.: </label>004.658 WAL  / 15147