Cita APA

Foley, G. (1987). The energy question. London: Penguin Books.

Chicago Style Citation

Foley, Gerald. The Energy Question. London: Penguin Books, 1987.

Cita MLA

Foley, Gerald. The Energy Question. London: Penguin Books, 1987.

Atenció: Aquestes cites poden no estar 100% correctes.