000 00258nam a2200109Ia 4500
008 230421s9999 xx 000 0 eng d
100 _aSingh (Vijaypal)
245 0 _aBhautik Vigyan Shikshan
250 _aIII
260 _bRadha Prakashan
942 _2ddc
_cBED
999 _c21068
_d21068