Simpson, Alan <br/><br/>
Understanding D-Base iv 1.5 for Dos 
Alan Simpson 
 - 3ed 
 - New Delhi  B.P.B. Pub.  1993 
 - xiii,1002 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer
<br/><br/><label>Dewey Class. No.: </label>005.133  / SIM N3