APA aipamena

Donaldson, P. (1977). Economics of the real world. London: Penguin Books.

Chicago Style aipamena

Donaldson, Peter. Economics of the Real World. London: Penguin Books, 1977.

MLA aipamena

Donaldson, Peter. Economics of the Real World. London: Penguin Books, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.