Friedlander, L. (1982). Factory valleys: Ohio & Pennsylvania / Lee Friedlander. Callaway.
Cita Chicago Style (17a ed.)Friedlander, Lee. Factory Valleys: Ohio & Pennsylvania / Lee Friedlander. New York: Callaway, 1982.
Cita MLA (8a ed.)Friedlander, Lee. Factory Valleys: Ohio & Pennsylvania / Lee Friedlander. Callaway, 1982.
Precaución: Estas citas no son 100% exactas.