Não informado. (1960). Technical communication. Department of Agriculture and Water Supply.
Lua i Stíl Chicago (17ú heag.)Não informado. Technical Communication. Pretoria, Africa do Sul: Department of Agriculture and Water Supply, 1960.
Lua MLA (8ú heag.)Não informado. Technical Communication. Department of Agriculture and Water Supply, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.