TY  - BOOK
AU  - D R Khanna
TI  - Environmental technology
SN  - 9788170358220
U1  - 363.7 
PY  - 2013///
CY  - New Delhi
PB  - Daya publishing house
KW  - Pollution control
KW  - Natural resource endowment
KW  - Environment and sustainable development
KW  - Disaster management
KW  - Biodiversity
ER  -