000 00295nam a2200109Ia 4500
008 220421s1994 xx 000 0 und d
041 _aeng
082 _a507
_bSID/TEA
100 _aSiddiqui,N.N.
_9570318
245 _aTeaching of science today and tomorrow
260 _aDelhi
_b Doaba House
_c1994
999 _c396423
_d396423