000 00283nam a2200109Ia 4500
008 170222s2016 xx 000 0 und d
020 _a8176487546
100 _aRao, V. K.
245 0 _aScience Education
260 _c2016
_bA P H Publishing Corporation New Delhi
942 _2ddc
_cBK
999 _c101739
_d101739