APA aipamena

Donaldson, H. (1965). Coal. Published for the Nuffield Foundation by the Longmans/ Penguin Books.

Chicago Style aipamena

Donaldson, H. Coal. London: Published for the Nuffield Foundation by the Longmans/ Penguin Books, 1965.

MLA aipamena

Donaldson, H. Coal. Published for the Nuffield Foundation by the Longmans/ Penguin Books, 1965.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.