Friedlander, L. (1982). Factory valleys: Ohio & Pennsylvania / Lee Friedlander. Callaway.
Lua i Stíl Chicago (17ú heag.)Friedlander, Lee. Factory Valleys: Ohio & Pennsylvania / Lee Friedlander. New York: Callaway, 1982.
Lua MLA (8ú heag.)Friedlander, Lee. Factory Valleys: Ohio & Pennsylvania / Lee Friedlander. Callaway, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.