New South Wales. Dept. of Lands. Integration Surveys Division. (1975). Specifications for establishment and maintenance of trigonometrical stations. Department of Lands.
Lua i Stíl Chicago (17ú heag.)New South Wales. Dept. of Lands. Integration Surveys Division. Specifications for Establishment and Maintenance of Trigonometrical Stations. Sydney: Department of Lands, 1975.
Lua MLA (8ú heag.)New South Wales. Dept. of Lands. Integration Surveys Division. Specifications for Establishment and Maintenance of Trigonometrical Stations. Department of Lands, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.