000 00313nam a2200133Ia 4500
008 211001s2019 xx 000 0 eng d
020 _a9789383980512
082 _a550
100 _aSrivastava, G.L.
245 0 _aBhu vigyan
260 _c2019
_aNew Delhi
_bSivank Prakashan
300 _a2510
942 _2ddc
_cBK
999 _c39204
_d39204