Dharani Venkatakrishnan S <br/><br/>
Operations research  principles and problems 

 - 4 
 - Coimbatore  Keerthi Publishing House  1994 
 - 471p. :ill. ;26cm. 
<br/><br/> includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operations research