APA-referens (7:e uppl.)

Angel, S. (2012). Planet of cities. Lincoln Institute of Land Policy.

Chicago-referens (17:e uppl.)

Angel, Shlomo. Planet of Cities. Cambridge, Mass.: Lincoln Institute of Land Policy, 2012.

MLA-referens (9:e uppl.)

Angel, Shlomo. Planet of Cities. Lincoln Institute of Land Policy, 2012.