000 00390nam a2200181Ia 4500
008 240220s9999 xx 000 0 und d
041 _aENG
082 _a658.542
100 _aKhanna O. P.
245 0 _aWork study
260 _aNew Delhi
260 _bDhanpat Rai Publications Pvt. Ltd.
260 _c2003
300 _a327p.
365 _b290
650 _aMECHANICAL
942 _cBB
999 _c422
_d422