Date C.J., <br/><br/>
An Introduction to Database Systems Vol.1 
C. J. Date  
 - 3rd ed.  
 - New Delhi :  Narosa Publishing House,   c1981.  
 - xxx, 580 p.:  [96] 
<br/><br/><label>ISBN: </label>8185015589 
<br/><br/><label>Dewey Class. No.: </label>005.74  / DAT/INT