APA aipamena

(1942). Vol. 14, № 2; The Petroleum Engineer. 1942.

Chicago Style aipamena

Vol. 14, № 2; The Petroleum Engineer. 1942, 1942.

MLA aipamena

Vol. 14, № 2; The Petroleum Engineer. 1942, 1942.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.