Ramanathan, R. <br/><br/>
An introduction to data envelopment analysis  : a tool for performance measurement / 

 - New Delhi:  SAGE,  2003 
 - 201p. Bibl. Index. 
<br/><br/><label>ISBN: </label>8178292610 
<br/><br/><label>Dewey Class. No.: </label>338.01  / R165.ID