by (United States)J.Susan Milton;by (United States)Irving M.Copi; by (United States)J.Milton;by (United Kingdom)J.Ford; by (United States)J.E.Hamilton;by (United States)N.Hawthorne; by (United States)John Milnor;by (United States)J.Mpearson; by (United States)J.D.Walton;by (United States)J.H.Reyner; by (United States)J.S.Robinson;by (United States)F.J.Romano;