000 00230nam a22001097a 4500
003 SGT
082 _a370
_bMAN
100 _aMANGAL, S.K.
245 _aLEARNING AND TEACHING
260 _aDELHI
_bSHIPRA
_c2017
942 _2ddc
_cBK
_013
999 _c17138
_d17138