by (United States)C.A.Bergman;by (United Kingdom)R.A.Close; by (United States)P.Choy;by (United Kingdom)R.A.Close; by (United States)N.A.Berkoff;by (United Kingdom)R.Barne; by (United States)R.M.Berne;by (United Kingdom)H.Davson; by (United States)C.A.Murray;by (United Kingdom)S.H.Hudson; by (United States)C.R.Goldman;by (United Kingdom)B.Gunston; by (United States)K.Seeger;by (United Kingdom)R.A.Smith; by (United States)N.wirth;by (United Kingdom)R.B.Coats; by (United States)N.R.Carlson;by (United Kingdom)R.E.Decker; by (United States)S.P.Parker;by (United Kingdom)R.E.Parker;