TY  - GEN
AU  - Trivedi , P.R. ;ed.
AU  - Sudarshan , K.N. ;ed.
TI  - Environment and natural resources conservation
SN  - 8171692796
U1  - 335.716 
PY  - 1994///
CY  - New Delhi
PB  - Commonwealth Publishers
KW  - ECONOMICS-ENVIRONMENT AND NATURAL
ER  -