Angel, S. (2012). Planet of cities. Lincoln Institute of Land Policy.
Lua i Stíl Chicago (17ú heag.)Angel, Shlomo. Planet of Cities. Cambridge, Mass.: Lincoln Institute of Land Policy, 2012.
Lua MLA (9ú heag.)Angel, Shlomo. Planet of Cities. Lincoln Institute of Land Policy, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.