Ellis, D. M. (1979). New York, state and city. Cornell University Press.
Lua i Stíl Chicago (17ú heag.)Ellis, David Maldwyn. New York, State and City. Ithaca, N.Y.: Cornell University Press, 1979.
Lua MLA (9ú heag.)Ellis, David Maldwyn. New York, State and City. Cornell University Press, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.