(United States)R.O.Wells;by (United States)S.Helgason; by (United States)R.O.Wells; (United States)R.O.Wells; (United States)G.P.Ellis;by (United States)J.S.Glasby; (United States)R.E.Machol;by (United States)J.Diamond; (United States)R.L.Grob;by (United States)F.D.Snell; (United States)R.Petit;by (United States)E.Geoldin; (United States)B.T.Lewis;by (United States)J.N.Siddall; (United States)F.J.Galland;by (United States)F.L.Head; (United States)R.R.Yager;by (United States)M.M.Gupta; (United States)A.Katok;by (United States)K.A.Ross;