000
00301nam a2200133Ia 4500
999
_c
58012
_d
58012
020
_a
9788183711111
100
_a
Raghavan Nambiar K
245
_a
Textbook of Environmental Studies
250
_a
2
260
_b
Scitech Publications
_a
Chennai
_c
2008
260
_c
2008
300
_a
8.11
942
_c
BK