Não informado. (1964). Demography. Population Association of America.
Lua i Stíl Chicago (17ú heag.)Não informado. Demography. Silver Spring, Md: Population Association of America, 1964.
Lua MLA (8ú heag.)Não informado. Demography. Population Association of America, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.