by (United Kingdom)R.P.Houghton;by (United States)T.J.Marks; by (United Kingdom)J.P.Hawker;by (United States)J.J.Carr; by (United Kingdom)R.A.Smith;by (United States)T.S.Moss; by (United Kingdom)R.E.Parker;by (United States)D.F.Falk; by (United Kingdom)R.Dhillon;by (United States)J.Howard; by (United Kingdom)R.H.Friba;by (United States)J.Martin; by (United Kingdom)R.J.Leigh;by (United States)R.Larsen; by (United Kingdom)R.N.Hardy;by (United States)K.M.Lyons; by (United Kingdom)R.L.Goodstein;by (United States)A.L.Steen; by (United Kingdom)A.P.M.Lockwood;by (United States)T.W.Torroy;