"Date, C. J." <br/><br/>
An introduction to database systems/ 
C. J. Date 
 - Delhi:  "Pearson,"  2000 
 - 938p. 
<br/><br/><label>ISBN: </label>81-7808-231-4 
<br/><br/><label>Subjects--Index Terms: </label>database systems 
<br/><br/><label>Dewey Class. No.: </label>5