by (United States)R.E.Larson;by (United States)R.P.Hostetler;by (United Kingdom)S.Lang; by (United States)I.M.Klotz;by (United States)R.M.Rosenberg;by (United Kingdom)B.H.Lavenda; by (United States)R.D.Levine;by (United States)R.B.Bernstein;by (United Kingdom)J.N.Bradley; by (United States)R.B.Ash;by (United States)M.F.Gardner;by (United Kingdom)I.V.Basawa; by (United States)R.E.Sonntag;by (United States)G.J.Van Wylen;by (United Kingdom)A.H.Wilson; by (United States)S.McKay;by (United States)L.Rosenthal;by (United Kingdom)S.Miller; by (United States)W.L.Johnson;by (United States)R.Dean;by (United States)S.Lang; by (United States)R.V.Hogg;by (United States)A.T.Craig;by (United Kingdom)M.Kendall; by (United States)F.Rissover;by (United States)D.C.Birch;by (United Kingdom)S.N.Nagi; by (United States)R.E.Phillips;by (United States)S.H.Pillips;by (United Kingdom)P.R.Hesse;