000 00308nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621
100 _aTrishna Knowledge Systems
245 0 _aGate 2017 ;Mechanical Engineering
250 _a1
260 _bPearson Education, New Delhi
_c2016
942 _cBK
999 _c30894
_d30894