Isachsen, Y. W. Origin of anorthosite and related rocks.
Lua i Stíl Chicago (17ú heag.)Isachsen, Yngvar W. Origin of Anorthosite and Related Rocks.
Lua MLA (8ú heag.)Isachsen, Yngvar W. Origin of Anorthosite and Related Rocks.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.