Lua APA (7ú heag.)
Langan, J. (2002). English skills with reading (5th ed.). McGrawHill.
Lua i Stíl Chicago (17ú heag.)
Langan, Jhon. English Skills with Reading. 5th ed. New York: McGrawHill, 2002.
Lua MLA (9ú heag.)
Langan, Jhon. English Skills with Reading. 5th ed. McGrawHill, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.