by (United States)R.N.Mohapatra;by (United States)D.H.Perkins; by (United States)R.H.Romer;by (United States)D.G.Leon; by (United States)D.E.Fear;by (United States)F.C.Watkins; by (United States)D.W.Moffat;by (United States)R.T.Froyen; by (United States)R.B.Mitra;by (United States)G.R.Newkome; by (United States)R.D.Mattuck;by (United States)D.F.Nelson; by (United States)R.H.Kraemer;by (United States)J.D.Starling; by (United States)C.J.Howard;by (United States)D.H.Howe; by (United States)D.N.Lapedes;by (United States)R.G.Lerner; by (United States)E.G.Brame;by (United States)L.H.Peebles;