000			002980000a22001330004500
080			_a51:621.7 _bW6
100			_aWolfe, J.H.
245			_aPractical shop mathematics
260			_aNew York _bMcGraw Hill _c1935
300			_a2v.
500			_a371 p.; 356 p.
700			_aPhelps, E.R.
942			_cBK
999			_c53112 _d53112