000 00262nam a2200097Ia 4500
008 230421s9999 xx 000 0 eng d
100 _aGupta (Jayendra Shekhar)
245 0 _aBhautik Avam Javik Paryavarayan Shikshan
260 _bJain Prakashan
942 _2ddc
_cBED
999 _c21544
_d21544