000 00261nam a2200121Ia 4500
008 220201s2017 xx 000 0 eng d
100 _aKanthar Y
245 0 _aLet us c
250 _a15th
260 _bBPB pub.
_aDelhi
_c2017
300 _a630
942 _2ddc
999 _c10985
_d10985