000 00283nam a2200121Ia 4500
008 160710s1956 xx 000 0 und d
082 _aJEF
100 _aJEFERSON,TED R.
245 _aWELDING ENGINEER
260 _bAMERICAN WELDING SOCIETY
_c1956
300 _a105
942 _2ddc
_cB
999 _c23355
_d23355