Sengupta, Jati K. <br/><br/>
Efficiency analysis by production frontiers, the nonparametric approach  / 

 - Boston:  Academic Press,  1989 
 - ix, 246 p. Index. 
 - Mathematical and Statistical Methods .
 - Theory and Decision Library   Series B  .
<br/><br/><label>Dewey Class. No.: </label>338.015195  / Se476.EA