TY  - BOOK
AU  - Mishra,R.M.
TI  - An introduction to environmental science
SN  - 9788183293327
U1  - 363.7 22
PY  - 2009///
CY  - New Delhi
PB  - Shree Pub.
KW  - Environmental sciences
KW  - Pollution
N1  - Bibliography : p.273-280
ER  -