Lua APA (7ú heag.)

Não informado. (1966). Abstracts of North American geology. U.S. Geological Survey.

Lua i Stíl Chicago (17ú heag.)

Não informado. Abstracts of North American Geology. Washington: U.S. Geological Survey, 1966.

Lua MLA (8ú heag.)

Não informado. Abstracts of North American Geology. U.S. Geological Survey, 1966.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.