APA aipamena

(1962). Steel & coal. Fuel & Metallurgical Journals.

Chicago Style aipamena

Steel & Coal. London: Fuel & Metallurgical Journals, 1962.

MLA aipamena

Steel & Coal. Fuel & Metallurgical Journals, 1962.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.