Lefkovitz, David <br/><br/>
Data management for on-line systems. 

 - Rochelle Park, N.J.  Hayden Book Co.  [1974] 
 - 289 p.  illus.  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>081045100X 
<br/><br/><label>LCCN: </label>74004017 //r92 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Online data processing.<br/>Electronic digital computers--Programming.
<br/><br/><label>LC Class. No.: </label>QA76.6  / .L42 
<br/><br/><label>Dewey Class. No.: </label>001.6/4