Lua APA (7ú heag.)

Keene, C. (1972). The clue in the old stagecoach. William Collins Sons and Co. Ltd..

Lua i Stíl Chicago (17ú heag.)

Keene, Carolyn. The Clue in the Old Stagecoach. Great Britain: William Collins Sons and Co. Ltd., 1972.

Lua MLA (9ú heag.)

Keene, Carolyn. The Clue in the Old Stagecoach. William Collins Sons and Co. Ltd., 1972.

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