Langer,A <br/><br/>
Analysis and Design of Information Systems. 

 - 3rd. 
 - New York.  Springer.  2008 
 - xiv,412p. 
<br/><br/><label>ISBN: </label> RS 4316.40 
<br/><br/><label>Dewey Class. No.: </label>004.21 LAN,A