000
00268nam a22001217a 4500
020
_a
9789383758272
082
_a
301.131 SIN
100
_a
Singh,Sohini
245
_a
Basic Environment science
260
_a
New Delhi
_b
Vayu Education
300
_a
266
942
_2
ddc
_c
BK
999
_c
3630
_d
3630