TY  - BOOK
AU  - अमित कुमार 
AU  - Amit Adhyayan
TI  - पर्यावरण अध्ययन 
U1  - H333.7 
PY  - 2006///
CY  - New Delhi
PB  - viswabharati, 
KW  - Paryavaran adhyayan
KW  - Environmental studies
KW  - Environmental Education
ER  -