000			002730000a22001210004500
080			_a621:744 _bA2
100			_aAbbott, W.
245			_aPractical geometry and engineering graphics
250			_a5th ed.
260			_aLondon _bBlackie _c1951
300			_a326p.
942			_cBK
999			_c52425 _d52425