000 00260nam a2200121 4500
020 _a9788174509673
082 _a500
100 _aNCERT
245 _aScience Exemplar Problems
_bClass X
260 _aNew Delhi
_bNCERT
_c2009
300 _a210p
942 _2ddc
_cSB
999 _c850
_d850