Neumann, U. (2020). Guide for the microscopical identification of ore and gangue minerals. Tübingen University Press.
Lua i Stíl Chicago (17ú heag.)Neumann, Udo. Guide for the Microscopical Identification of Ore and Gangue Minerals. Tübingen: Tübingen University Press, 2020.
Lua MLA (9ú heag.)Neumann, Udo. Guide for the Microscopical Identification of Ore and Gangue Minerals. Tübingen University Press, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.