000 00266nam a2200109Ia 4500
008 230210s9999 xx 000 0 und d
100 _aBhatnagar, A.B.
_919018
245 0 _aTeaching of Science
260 _bSurya Publication
_c2008
300 _a491
942 _cBK
999 _c118536
_d118536