Ray, Subhash C  . <br/><br/>
Data envelopment analysis: theory and techniques for economics and operations research /  
by Subhash C ray. 
 - Cambridge :   Cambridge University Press ,   2004 
 - xii, 353p ;  
<br/><br/><label>ISBN: </label>0-521-80256-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Production(Economic theory)
<br/><br/><label>Dewey Class. No.: </label>X  / p4