TY  - BOOK
AU  - Sinha, Shrada
AU  - Shukla, Manisha
AU  - Sahukla, Ranjana
TI  - Text book of  envirnmental studies
SN  - 8174733027
U1  - 577.14 
PY  - 2005///
CY  - Delhi
PB  - A.I.T.B.S. Publishers
KW  - Applied Sc
KW  - Environmental Science
ER  -