000			00348cam a2200145ua 4500
041			_aeng _h
082			_a671.52 _bDAV/SC
100			_aDavies, A C .
245			_aScience and practice of welding
260			_aLondon : _bCambridge at the University Press , _c1963.
300			_a640 ; .
504			_a
942			_cBK
999			_c329322 _d329322