APA aipamena

Nord, S. S. Bulletin of the Seismological Station Nord. Copenhagen.

Chicago Style aipamena

Nord, Seismological Station. Bulletin of the Seismological Station Nord. Copenhagen.

MLA aipamena

Nord, Seismological Station. Bulletin of the Seismological Station Nord. Copenhagen.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.