Cita APA (7th ed.)

O'Sullivan, A. (2012). Urban economics (8th edition.). McGraw-Hill/Irwin.

Cita Chicago (17th ed.)

O'Sullivan, Arthur. Urban Economics. 8th edition. New York, NY: McGraw-Hill/Irwin, 2012.

Cita MLA (8th ed.)

O'Sullivan, Arthur. Urban Economics. 8th edition. McGraw-Hill/Irwin, 2012.

Atenció: Aquestes cites poden no estar 100% correctes.