APA aipamena

Roberts, R. (1990). Computer viruses. Galgotia.

Chicago Style aipamena

Roberts, Ralph. Computer Viruses. New Delhi: Galgotia, 1990.

MLA aipamena

Roberts, Ralph. Computer Viruses. Galgotia, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.