000 00290nam a2200133Ia 4500
008 221229s9999 xx 000 0 und d
100 _aNCERT
245 4 _aThe Earth: our habitat
250 _a1st
260 _aNew Delhi
_bNCERT
_c2006
300 _a67
650 _aEducation
942 _cBK
999 _c6960
_d6960