000			00299nam a2200121Ia 4500
005			20240713151243.0
008			240712s9999 xx 000 0 und d
041			_aeng
100			_aDubey, a.k.
245			_aEngineering mechanics
260			_aNew Delhi _b New age int (p) ltd. _c2011
300			_a419
999			_c34021 _d34021