Cooper, Leon.   <br/><br/>
Introduction to operations research models   
by Leon Cooper, U. Narayan Bhat and Larry J. Le Blanc 
 - Philadelphia  W. B. Saunders  1977 
 - 404p. 
<br/><br/><label>ISBN: </label>0721626882   
<br/><br/><label>LCCN: </label>76-8571 
<br/><br/><label>Dewey Class. No.: </label>001.424  / COO