000			003000000a22001330004500
080			_a621.01 _bM6
100			_aMorley, Arthur
245			_aElementary engineering science
250			_a2nd ed.
260			_aLondon _bLongmans _c1952
300			_axi, 300p.
700			_aHughes, Edward
942			_cBK
999			_c52468 _d52468