Ehlers, C. (1974). Layering in rapakivi granite, SW Finland. Åbo akademi].
Lua i Stíl Chicago (17ú heag.)Ehlers, Carl. Layering in Rapakivi Granite, SW Finland. [Åbo, Finland: Åbo akademi], 1974.
Lua MLA (8ú heag.)Ehlers, Carl. Layering in Rapakivi Granite, SW Finland. Åbo akademi], 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.