Cita APA

Donaldson, P. (1998). A question of economics. New York: Penguin Books.

Chicago Style Citation

Donaldson, Peter. A Question of Economics. New York: Penguin Books, 1998.

Cita MLA

Donaldson, Peter. A Question of Economics. New York: Penguin Books, 1998.

Atenció: Aquestes cites poden no estar 100% correctes.