TY  - GEN
AU  - Khosla, Reeta
AU  - Siddiqui, Zahid
TI  - Basics of environmental science
SN  - 9788184874013
U1  - 363.7 
PY  - 2017///
CY  - New Delhi
PB  - Narosa Publishing House
KW  - Environmental Science
ER  -