000 00349nam a2200145Ia 4500
008 230917s9999||||xx |||||||||||||| ||und||
040 _e83855
_aMAIN
041 _aEnglish
082 _a372.3 S64T
100 _aSingh, Uttam Kumar
245 0 _aTeaching of science
260 _aNew Delhi
_bCommonwealth
_c1997
300 _av, 256 p.
942 _cBK
999 _c97732
_d97732