Cita APA (7a ed.)
Siegel, F. F. (2000). The future once happened here: New York, D.C., L.A., and the fate of America's big cities (1st paperback ed.). Encounter Books.
Cita Chicago Style (17a ed.)
Siegel, Frederick F. The Future Once Happened Here: New York, D.C., L.A., and the Fate of America's Big Cities. 1st paperback ed. San Francisco: Encounter Books, 2000.
Cita MLA (9a ed.)
Siegel, Frederick F. The Future Once Happened Here: New York, D.C., L.A., and the Fate of America's Big Cities. 1st paperback ed. Encounter Books, 2000.
Precaución: Estas citas no son 100% exactas.