000 00316nam a2200121Ia 4500
008 220201s1967 xx 000 0 eng d
082 _a670
_bBAL
100 _aBalbir singh & C.K singh
245 2 _aA text book of production engineering
260 _bDelhi:Standard book house
_c1967
300 _a396
942 _2ddc
999 _c74276
_d74276