Conn, S. (2006). Metropolitan Philadelphia: Living with the presence of the past. University of Pennsylvania Press.
Cita Chicago (17th ed.)Conn, Steven. Metropolitan Philadelphia: Living with the Presence of the Past. Philadelphia: University of Pennsylvania Press, 2006.
Cita MLA (9th ed.)Conn, Steven. Metropolitan Philadelphia: Living with the Presence of the Past. University of Pennsylvania Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.