000 00306nam a2200121 4500
020 _a978-8171415779
022 _a8171415776
100 _aD. B. Rao
245 _aTeacher Training in Science and Technology Education
260 _aNew Delhi
_bDiscovery Publishing House
_c2020
300 _a 536
942 _cBK
999 _c4351
_d4351