Gerald, Johan M. Fitz Gerald, Ardra F. Fitz <br/><br/>
Funmentals of systems analysis 

 - New York  John Wiley  1973 
 - v, 531p. 
<br/><br/><label>ISBN: </label>0471262552 
<br/><br/><label>Dewey Class. No.: </label>658.4032  / F51F