Belot, É., & Belot, É. (2013). Boulogne-sur-Mer – Souterrains du château comtal. URI:https://journals.openedition.org/adlfi.
Lua i Stíl Chicago (17ú heag.)Belot, Éric, agus Éric Belot. "Boulogne-sur-Mer – Souterrains Du Château Comtal." URI:https://journals.openedition.org/adlfi 2013.
Lua MLA (8ú heag.)Belot, Éric, agus Éric Belot. "Boulogne-sur-Mer – Souterrains Du Château Comtal." URI:https://journals.openedition.org/adlfi, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.