000 00302nam a2200121Ia 4500
008 191201s2019 xx 000 0 und d
100 _aSINGH, Harvinder
245 0 _aEngineering Drawing & Computer Graphics
250 _a5th Rep
260 _bDHANPAT RAI
_aNEW DELHI
300 _a518
942 _2ddc
_cBK
999 _c8171
_d8171