Não informado. (1969). Abstracts with programs. Geological Society of America.
Lua i Stíl Chicago (17ú heag.)Não informado. Abstracts with Programs. Boulder, Colo: Geological Society of America, 1969.
Lua MLA (8ú heag.)Não informado. Abstracts with Programs. Geological Society of America, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.