APA aipamena

Gulvin, J. (2000). The covenant. Orion.

Chicago Style aipamena

Gulvin, Jeff. The Covenant. London: Orion, 2000.

MLA aipamena

Gulvin, Jeff. The Covenant. Orion, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.