000 00321nam a2200133Ia 4500
008 190722s9999 xx 000 0 und d
020 _a978-93-86105-85-1
100 _aSusan Koba
245 0 _aHard to Teach Biology Concepts
250 _a2rd
260 _aNew Delhi
_bNSTA Press
_c2017
300 _a336
942 _cBK
999 _c1086
_d1086