Allen, C. (2005). EvidenceChristopher Allen. Cavendish Publishing.
Lua i Stíl Chicago (17ú heag.)Allen, Christopher. EvidenceChristopher Allen. Cavendish Publishing, 2005.
Lua MLA (8ú heag.)Allen, Christopher. EvidenceChristopher Allen. Cavendish Publishing, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.