by (United Kingdom)R.N.Hardy;by (United States)K.M.Lyons; by (United Kingdom)R.N.Haward;by (United States)M.Morton; by (United Kingdom)J.Lyons;by (United States)J.Lyons; by (United Kingdom)B.A.Marples;by (United States)K.Mislow; by (United Kingdom)R.C.Helt;by (United States)R.H.Hammond; by (United Kingdom)R.E.Parker;by (United States)D.F.Falk; by (United Kingdom)R.A.Smith;by (United States)T.S.Moss; by (United Kingdom)R.C.Evans;by (United States)R.Zallen; by (United Kingdom)R.H.Friba;by (United States)J.Martin; by (United Kingdom)R.Quirk;by (United States)B.Evans;