by (United States)S.Lipschutz;by (United Kingdom)F.P.Besag; by (United States)T.Mcarthur;by (United Kingdom)F.R.Palmer; by (United States)D.P.Saccuzzo;by (United Kingdom)L.P.Ullmann; by (United States)S.S.Zumdahl;by (United Kingdom)R.S.Boikess; by (United States)P.N.Okeke;by (United Kingdom)F.Tyler; by (United States)S.Datz;by (United Kingdom)H.Massey; by (United States)S.Lipschutz;by (United States)G.Strang; by (United States)S.Siggia;by (United Kingdom)A.I.Vogel; by (United States)S.E.Wostern;by (United Kingdom)B.K.Sound; by (United States)S.A.Newman;by (United Kingdom)E.B.Smith;