Não informado. (1950). Climatological data. U.S. Department of Commerce, Weather Bureau.
Lua i Stíl Chicago (17ú heag.)Não informado. Climatological Data. Washington: U.S. Department of Commerce, Weather Bureau, 1950.
Lua MLA (8ú heag.)Não informado. Climatological Data. U.S. Department of Commerce, Weather Bureau, 1950.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.