000 00256nam a2200109Ia 4500
008 230125s9999 xx 000 0 und d
100 _aMAHESHWARI V.K
_914620
245 0 _aTEACHING OF SCIENCE
260 _bSURYA PUB.
_c2010
300 _a363
942 _cBK
999 _c110672
_d110672