Não informado. (1931). Investigational report. U.S. Department of Commerce, Bureau of Fisheries.
Lua i Stíl Chicago (17ú heag.)Não informado. Investigational Report. Washington: U.S. Department of Commerce, Bureau of Fisheries, 1931.
Lua MLA (8ú heag.)Não informado. Investigational Report. U.S. Department of Commerce, Bureau of Fisheries, 1931.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.