TY  - BOOK
AU  - Singh,Ghanshyam N..
TI  - Environmental economics / 
SN  - 817099277X
U1  - 333.7 
PY  - 1991///
CY  - New Delhi : 
PB  - Mittal Publications , 
KW  - ECONOMIC DEVELOPMENT-ENVIRONMENTAL ASPECTS
N1  - NULL
ER  -