Lua APA (7ú heag.)

CHRISTIE, A. (2016). AT BERTRAM'S HOTEL. HARPERCOLLINS PUBLISHERS.

Lua i Stíl Chicago (17ú heag.)

CHRISTIE, AGATHA. AT BERTRAM'S HOTEL. LONDON: HARPERCOLLINS PUBLISHERS, 2016.

Lua MLA (9ú heag.)

CHRISTIE, AGATHA. AT BERTRAM'S HOTEL. HARPERCOLLINS PUBLISHERS, 2016.

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