000 00271nam a2200109Ia 4500
008 220201s1968 xx 000 0 eng d
100 _aLal, K & Pershad, Hari
245 0 _aMechanics & design
260 _bDelhi: Friends Corporation
_c1968
300 _a427
942 _2ddc
999 _c73739
_d73739