000 00389nam a2200145Ia 4500
100 _aNational Council of Educational Research and Training
020 _a81-7450-492-3
365 _b135
942 _cBK
654 _a
245 _aScience text book for class IX
260 _aNew Delhi
_bNational Council for Educational Research and Training
_c2015
082 _a500
300 _a218
999 _c390477
_d390477
041 _aeng