Ullman, Jeffrey D <br/><br/>
Principles Of Database Systems 

 - 2 ed. 
 - New Delhi  Galgotia   1992 
 - 484 
<br/><br/><label>Subjects--Topical Terms: </label> Data Models  Program Environment  Cyclic and Acyclic  
<br/><br/><label>Dewey Class. No.: </label>621.3819535 U-2P