Sacks, D. (2003). Language visible: Unraveling the mystery of the alphabet from a to z (First edition.). Broadway Books.
Lua i Stíl Chicago (17ú heag.)Sacks, David. Language Visible: Unraveling the Mystery of the Alphabet from a to Z. First edition. New York: Broadway Books, 2003.
Lua MLA (9ú heag.)Sacks, David. Language Visible: Unraveling the Mystery of the Alphabet from a to Z. First edition. Broadway Books, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.