000 00294nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aVaidya, Narendra
245 0 _aScience Teaching In Schools ; for the 21st century
260 _aNew Delhi
_bDeep & Deep
_c2006
300 _a503p.
942 _cBK
999 _c12282
_d12282