TY  - BOOK
AU  - Sinha, S.
TI  - A Textbookn of Environmental Studies
SN  - 8174733027
SN  - 978-81747
U1  - 628.1SIN 
PY  - 2005///
CY  - Delhi
PB  - AITBS
KW  - Environmental sciences
KW  - Human ecology
ER  -