Nagrath, I.J <br/><br/>
Systems modelling and analysis 

 - New Delhi  Tata MacGraw-Hill  1982 
 - xii, 647p.  HB  24cm 
<br/><br/><label>ISBN: </label>0074517872 
<br/><br/><label>Dewey Class. No.: </label>658.4032  / NAG