000 00283nam a2200121Ia 4500
008 220201s1997 xx 000 0 eng d
100 _aKHANNA, O.P.
245 0 _aT.B. OF WELDING TECHNOLOGY
250 _aDELHI
260 _aDELHI
_bDHANPAT RAI
_c1997
300 _a944
942 _2ddc
999 _c67171
_d67171