Lua APA (7ú heag.)
Herm, G. (1977). The celts: The people who came out of the darkness (1 ed.). St. Martin's Press.
Lua i Stíl Chicago (17ú heag.)
Herm, Gerhard. The Celts: The People Who Came Out of the Darkness. 1 ed. New York: St. Martin's Press, 1977.
Lua MLA (9ú heag.)
Herm, Gerhard. The Celts: The People Who Came Out of the Darkness. 1 ed. St. Martin's Press, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.