Cita APA (7a ed.)

O'Sullivan, A. (1993). Urban economics (2nd ed.). Irwin.

Cita Chicago Style (17a ed.)

O'Sullivan, Arthur. Urban Economics. 2nd ed. Homewood [etc.]: Irwin, 1993.

Cita MLA (9a ed.)

O'Sullivan, Arthur. Urban Economics. 2nd ed. Irwin, 1993.