Cohen Leo J <br/><br/>
Database management systems 

 - Welles  ley PDC          1978 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>44331 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Management information systems<br/>Computer science
<br/><br/><label>Dewey Class. No.: </label>D65,8(B):3:(X:8), L8