by (United States)K.Folkestad; (United States)O.E.Dunlap; by (United States)K.Rossberg;by (United States)R.E.Keller; by (United States)W.F.Stout;by (United States)K.L.Chung; by (United States)A.Beiser;by (United States)O.Bluh; by (United States)H.Heyer;by (United States)K.O.Ondar; by (United States)K.Hjalte;by (United States)M.A.Hitt; by (United States)R.E.Decker;by (United States)R.E.Decker; by (United States)B.A.Auld;by (United States)O.V.Rudenko; by (United States)K.L.Bowles;by (United States)D.G.Dologite; by (United States)G.Kothe;by (United States)K.P.Kamthan;