APA aipamena

(1995). Vol. 93, № 45; OiL and Gas journal. 1995.

Chicago Style aipamena

Vol. 93, № 45; OiL and Gas Journal. 1995, 1995.

MLA aipamena

Vol. 93, № 45; OiL and Gas Journal. 1995, 1995.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.