000 00300nam a2200121Ia 4500
008 220201s1980 xx 000 0 eng d
082 _bKHA
100 _aKhanna ,O.P.
245 2 _aA textbook of welding technology
260 _aNew Delhi
_bDhanpat Rai and sons
_c1980
300 _a748
942 _2ddc
999 _c22667
_d22667