Cita APA (7th ed.)
Angel, S. (2012). Planet of cities. Lincoln Institute of Land Policy.
Cita Chicago (17th ed.)
Angel, Shlomo. Planet of Cities. Cambridge, Mass.: Lincoln Institute of Land Policy, 2012.
Cita MLA (9th ed.)
Angel, Shlomo. Planet of Cities. Lincoln Institute of Land Policy, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.