APA aipamena

(1917). Vol. 12, № 3; Economic Geology. 1917.

Chicago Style aipamena

Vol. 12, № 3; Economic Geology. 1917, 1917.

MLA aipamena

Vol. 12, № 3; Economic Geology. 1917, 1917.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.