Phillips, Don T. and Others <br/><br/>
Operational research; principles and practice   
By Don T. Phillips, A. Ravindran and James J. Solberg 
 - New York  John Wiley  1976 
 - xvii, 585p. 
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>658.4034  / P558.OR