1Andre Bazin, What is Cinema, Vol.2, Berkeley: University of California Press, 1971
2Ontology of the Photographic Image in What is Cinema? Vol.1, 1971
3Will CinemaScope Save the Film Industry? in Bazin at Work, Routeldge Press, 1997
4Asa Harris, Widescreen and its Imapct on Film as a Narrative Art, 2001
5Charles Barr, CinemaScope: Before and After, in Gerald Mast and Marshall Cohen (eds.), Film Theory and Criticism. New York: Oxford University Press, 1974
6David Bordwell, Janet Staiger and Kristin Thompson, The Classical Hollywood Cinema: Film Style and Mode of Production, Columbia University Press, 1985
7Edward Buscombe (ed.), The BFI Companion to the Western, New York: Ahteneum, 1988
8Harvey.R.Greenberg, Unforgiven, in Film Quarterly, Vol.46, n3, Spring 1993
9Henry Sheehan, Scraps of Hope: Clint Eastwood and the Western, Film Comment, Sept-Oct, 1992
10J. E. Spellerberg, Technology and the Film Industry: The Adoption of CinemaScope, University of Iowa, Ph.D. Thesis, Ann Arbor: UMI Dissertation Information Service, 1980
