000			00427nam a2200133Ia 4500
008			190916s1961||||xx |||||||||||||| ||und||
020			_a3411
082			_a671.522 _bAp
245		0	_aAppraisal of demand for oxygen dissolved acetylene welding electrodes, gas cylinders.
260			_aNew Delhi : _bNational Council of Applied Economic Research, _c1961.
300			_a115 p. :
650			_aSteel industry and trade
942			_cBK
999			_c13498 _d13498