000 00306nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aRao, Digumarti Bhaskara
245 0 _aInternational Encyclopaedia Of Science And Technology Edcuation
260 _aNew Delhi
_bDPH
_c2000
300 _a557p.
942 _cBK
999 _c15418
_d15418