Cita APA

O'Sullivan, P. (1981). Geographical economics. New York: Wiley.

Chicago Style Citation

O'Sullivan, Patrick. Geographical Economics. New York: Wiley, 1981.

Cita MLA

O'Sullivan, Patrick. Geographical Economics. New York: Wiley, 1981.

Atenció: Aquestes cites poden no estar 100% correctes.