TY  - BOOK
AU  - Thukral, A.K., ed.
TI  - Environmental protection
SN  - 8172332580
U1  - 363.7 21st ed.
PY  - 2000///
CY  - Jodhpur
PB  - Scientific Publishers
KW  - Environment
KW  - Environmental protection
KW  - Pollution
KW  - Virk
KW  - G.S., ed
ER  -