00273nam a2200109Ia 4500008004100000041000800041082002300049100001700072245002900089260003700118300000800155211209s1975    xx            000 0 und d  aeng  a671.52 N75 GON/EDM  aGONZOLES R F  aINTRODUCTION TO WELDING   aLONDONbHARPER & ROW PUBS.c1975  a319