Hamilton, G. E. (1918). Pedigree of the De Hereford Family.
Lua i Stíl Chicago (17ú heag.)Hamilton, Gustavus Everard. Pedigree of the De Hereford Family. 1918.
Lua MLA (9ú heag.)Hamilton, Gustavus Everard. Pedigree of the De Hereford Family. 1918.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
