TY  - BOOK
AU  - Awuwalia, V.K.  Malhotra, S.
TI  - Environmental science
SN  - 9788180522116
AV  - QH540.4.A4 2006 
PY  - 2006///
CY  - New Delhi
PB  - Ane books
KW  - Ecology
KW  - Environmental sciences
ER  -