Não informado. (1950). Canadian Geographer. Canadian Association of Geographers.
Lua i Stíl Chicago (17ú heag.)Não informado. Canadian Geographer. Ottawa: Canadian Association of Geographers, 1950.
Lua MLA (8ú heag.)Não informado. Canadian Geographer. Canadian Association of Geographers, 1950.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.