Não informado. (1947). South African Science. South African Association for the Advancement of Science.
Lua i Stíl Chicago (17ú heag.)Não informado. South African Science. Johannesburg, Africa do Sul: South African Association for the Advancement of Science, 1947.
Lua MLA (8ú heag.)Não informado. South African Science. South African Association for the Advancement of Science, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.