TY  - BOOK
AU  - Ray,Subhash C.
TI  - Data envelopment analysis: theory and techniques for economics and operations research
SN  - 9780511606731
U1  - 338.4 
PY  - 2009///
CY  - Cambridge
PB  - C.U.P.
KW  - Mathematical physics
KW  - Econometrics and mathematical methods
UR  - http://dx.doi.org/10.1017/CBO9780511606731
ER  -