Harper Reviews and cast and crew details. http://www.allmovie.com/cg/avg.dll?p=avg&sql=FHarper

Harper Cast, crew and plot summary. http://us.imdb.com/title/tt0060490/

Exit Lew Archer - Enter Lew Harper Examines the evolution from Ross Macdonald's pulp character to William Goldman's film one. http://www.thecolumnists.com/miller/miller206.html