Não informado. (2020). Special Reports on the Mineral Resources of Great Britain. H. M. Stationery Office.
Lua i Stíl Chicago (17ú heag.)Não informado. Special Reports on the Mineral Resources of Great Britain. London: H. M. Stationery Office, 2020.
Lua MLA (8ú heag.)Não informado. Special Reports on the Mineral Resources of Great Britain. H. M. Stationery Office, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.