TY  - GEN
AU  - Thukral, A. K. 
AU  - Virk, G. S. 
TI  - Environmental protection
SN  - 8172332580
U1  - 363.7 
PY  - 2000///
CY  - Jodhpur
PB  - Scinetific Publishers
KW  - Environmental problems
KW  - Other social problems and services
ER  -