TY  - BOOK
AU  - Trivedi, P. R.,
TI  - Encyclopaedia of World Environment Vol.4 : Pollution
SN  - 8176480401
U1  - 550 
PY  - 1999///
CY  - New Delhi
PB  - APH Publishing Corporation
KW  - Earth sciences
KW  - Pollution
ER  -