000
00285nam a22001097a 4500
020
_a
9788176222792
082
_a
363.73
_b
KHA.E
100
_a
D R Khanna
245
_a
Environmental pollution: Assessment and control techniques
260
_a
New Delhi
_b
Biotech books
_c
2013
942
_c
BK
999
_c
202699
_d
202699