Longford, M. (1982). The complete encyclopedia of photography. Ebury Press.
Lua i Stíl Chicago (17ú heag.)Longford, Michale. The Complete Encyclopedia of Photography. London: Ebury Press, 1982.
Lua MLA (9ú heag.)Longford, Michale. The Complete Encyclopedia of Photography. Ebury Press, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.