APA aipamena

Society of Economic Geologists. (1925). Economic Geology Vol.20 Nos.1-8.

Chicago Style aipamena

Society of Economic Geologists. Economic Geology Vol.20 Nos.1-8. Economic Geology Publishing Co, 1925.

MLA aipamena

Society of Economic Geologists. Economic Geology Vol.20 Nos.1-8. 1925.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.