TY  - BOOK
AU  - Reeta Khosla
AU  - Zahid H. Siddiqui
TI  - Basics of environmental science
SN  - 9788184874013
U1  - 333.7 
PY  - 2017///
CY  - New Delhi
PB  - Narosa
KW  - ecosystem
KW  - biodiversity& conservation
KW  - environmental issues
KW  - environmental  policies
KW  - ecology
ER  -