Achen, S. T. (1978). Heraldikkens femten Glaeder. Gad.
Lua i Stíl Chicago (17ú heag.)Achen, Sven Tito. Heraldikkens Femten Glaeder. Kobenhavn: Gad, 1978.
Lua MLA (8ú heag.)Achen, Sven Tito. Heraldikkens Femten Glaeder. Gad, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.