TY  - BOOK
AU  - TIWARI (Manoj)
AU  - KHULBE (Kapil)
TI  - Environmental studies
SN  - 9788188237821
U1  - 574.5 TIWE 
PY  - 2016///
CY  - New Delhi
PB  - I.K. International Pub. House Pvt. Ltd.
ER  -