000 00252nam a2200109Ia 4500
008 200129s9999 xx 000 0 und d
082 _aNCE-S
100 _aNCERT
245 0 _aSOCIAL SCIENCE : OUR ENVIRONMENT (H)
260 _bNCERT
_c2007
942 _cREF
999 _c3683
_d3683