00314nam a2200109Ia 4500082002400000100004800024245008300072260003000155300000900185500000500194700000500199  a338.47672bAm512.CS  aAmerican Iron and Steel Institute, New York  aCharting steel's progressba graphic facts book on the iron and steel industry  aNew YorkbThe Auth.c1961  a65p.  a  a