000 00471nam a2200169Ia 4500
001 15861
008 140403s9999 xx 000 0 und d
020 _a81-7024-865-5
040 _cPK-LaUMT
082 _a 507.2
_bGUP-R
100 _aNaresh Kumar Gupta
245 _aResearch in teaching of science:
_bModels and strategies.
_cNaresh Kumar Gupta
260 _aNew Delhi,India:
_bA.P.H. Publishing Corporation,
_c1997
300 _a210 p.
546 _aEN
942 _cBK
999 _c16338
_d16338