Lua APA (7ú heag.)

Holmes, O. W. The Guardian Angel.

Lua i Stíl Chicago (17ú heag.)

Holmes, Oliver Wendell. The Guardian Angel.

Lua MLA (9ú heag.)

Holmes, Oliver Wendell. The Guardian Angel.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.