000 00327nam a2200133Ia 4500
008 211201s2003 xx 000 0 eng d
082 _a375.5
100 _aGUPTA,NARESH.K
245 0 _aRESEARCH IN TEACHING OF SCIENCE
260 _bAPH PUBLICATION
_aNEW DELHI
_c2003
300 _a210
650 _aEducation
942 _2ddc
_cDOE
999 _c3793
_d3793