000 00276nam a2200121Ia 4500
008 230321s9999 xx 000 0 und d
082 _a372.35
_bKUL
100 _aKulshrestha,S.P
245 0 _aTeaching of Science
260 _bR.Lall book
_c2007
300 _a510
942 _cBD
999 _c3568
_d3568