Não informado. Association of Engineering Geologists newsletter. Association of Engineering Geologists.
Lua i Stíl Chicago (17ú heag.)Não informado. Association of Engineering Geologists Newsletter. Lawrence, Kan: Association of Engineering Geologists.
Lua MLA (8ú heag.)Não informado. Association of Engineering Geologists Newsletter. Association of Engineering Geologists.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.