TY  - BOOK
AU  - Sengupta Jati K
TI  - Efficiency analysis by production frontiers:  The n   
T2  - Theory and Decision Library
U1  - X:2:(B), M9 
PY  - 1989///
CY  - Dodrecht
PB  - Kluwer Academic         
N1  - Bibliography chapterwise
ER  -