TY  - BOOK
AU  - P.R.Srivastava, 
AU  - S.K.Shukla 
TI  - Global environment series / 
SN  - 81-7169-447-0
U1  - 363.7 
PY  - 1997///
CY  - New Delhi
PB  - Common Wealth
KW  - Environment
ER  -