Não informado. Association of Engineering Geologists newsletter. Association of Engineering Geologists.
Chicago-referens (17:e uppl.)Não informado. Association of Engineering Geologists Newsletter. Lawrence, Kan: Association of Engineering Geologists.
MLA-referens (8:e uppl.)Não informado. Association of Engineering Geologists Newsletter. Association of Engineering Geologists.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.