APA aipamena

(1953). Vol. 48, № 6-8; Economic Geology. 1953.

Chicago Style aipamena

Vol. 48, № 6-8; Economic Geology. 1953, 1953.

MLA aipamena

Vol. 48, № 6-8; Economic Geology. 1953, 1953.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.