Não informado. Revue Technique Luxembourgeoise. Association Luxembourgeoise des Ingenieurs et Industriels.
Lua i Stíl Chicago (17ú heag.)Não informado. Revue Technique Luxembourgeoise. Luxembourg: Association Luxembourgeoise des Ingenieurs et Industriels.
Lua MLA (8ú heag.)Não informado. Revue Technique Luxembourgeoise. Association Luxembourgeoise des Ingenieurs et Industriels.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.