Conn, S. (2006). Metropolitan Philadelphia: Living with the presence of the past. University of Pennsylvania Press.
Chicago-referens (17:e uppl.)Conn, Steven. Metropolitan Philadelphia: Living with the Presence of the Past. Philadelphia: University of Pennsylvania Press, 2006.
MLA-referens (9:e uppl.)Conn, Steven. Metropolitan Philadelphia: Living with the Presence of the Past. University of Pennsylvania Press, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.