000
00327nam a2200133Ia 4500
040
_c
PK-LaCSN
082
_b
DHI
_a
500
245
4
_a
The ultimate book of knowledge earth
260
_b
Dhingra Publishing
_a
New Delhi
_c
2013
300
_a
40
942
_2
ddc
_c
BK
999
_c
245287
_d
245287