BURCH,John G. <br/><br/>
Information systerms 

 - 3rd Ed. 
 - New York.  John Wiley & Sons, US  1983 
 - (xi),632p. 
<br/><br/><label>ISBN: </label>471062111 
<br/><br/><label>Dewey Class. No.: </label>658.40388