000 00462nam a2200157Ia 4500
008 190329s9999||||xx |||||||||||||| ||und||
020 _a9788174509765
040 _aNITIL
_cNITIL
082 _221st
_a500
_bN277S
110 _aNational Council of Education Research and Training
245 0 _aScience
_bexemplar problems
260 _aNew Delhi
_bNational Council of Education Research and Training
_c2009
300 _a182p.
650 _aSCIENCE
942 _cBKS
999 _c78760
_d78760