South African Bureau of Standards. (1964). Standard specification for wooden telephone and general purpose electric light poles. Council of the South Africa Bureau of Standards.
Lua i Stíl Chicago (17ú heag.)South African Bureau of Standards. Standard Specification for Wooden Telephone and General Purpose Electric Light Poles. South Africa: Council of the South Africa Bureau of Standards, 1964.
Lua MLA (9ú heag.)South African Bureau of Standards. Standard Specification for Wooden Telephone and General Purpose Electric Light Poles. Council of the South Africa Bureau of Standards, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.