Elmasri, Ramez Navathe, Shamkant B. <br/><br/>
Fundamentals of Datbase Systems 

 - 4 
 - Delhi  Pearson Education  2004 
 - p.1010 
<br/><br/><label>ISBN: </label>8129702282 
<br/><br/><label>Subjects--Topical Terms: </label> DBMS  Relational Model  Relational Algebra  Data Storage 
<br/><br/><label>Dewey Class. No.: </label>621.3819535 E48F