000 00281nam a2200121Ia 4500
008 220201s2015 xx 000 0 eng d
082 _a629.2
_bGUP
100 _aGupta, R B
245 0 _aAuto. Engg.
260 _bNew Delhi: Satya prakashan
_c2015
300 _aV P
942 _2ddc
999 _c88751
_d88751