Allen, C. (2005). EvidenceChristopher Allen. Cavendish Publishing.
Chicago Style aipamenaAllen, Christopher. EvidenceChristopher Allen. Cavendish Publishing, 2005.
MLA aipamenaAllen, Christopher. EvidenceChristopher Allen. Cavendish Publishing, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.