Não informado. (1957). Canadian Journal of Soil Science. Agricultural Institute of Canada.
Lua i Stíl Chicago (17ú heag.)Não informado. Canadian Journal of Soil Science. Ottawa: Agricultural Institute of Canada, 1957.
Lua MLA (8ú heag.)Não informado. Canadian Journal of Soil Science. Agricultural Institute of Canada, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.