000 00270nam a2200121Ia 4500
008 211209s1975 xx 000 0 und d
041 _aeng
082 _a671.52 N75 GON
100 _aGONZALES R F
245 _aINTRODUCTION TO WELDING
260 _c1975
300 _a315
999 _c13058
_d13058