TY  - BOOK
AU  - Theli, B.L.
TI  - पर्यावर्णीय अध्ययन (Environmental studies)
SN  - 9789381906002
U1  - H333.7 
PY  - 2012///
CY  - New Delhi
PB  - Viswabharati
KW  - Environmental science- Hindi
KW  - Hindi literature
ER  -