Não informado. Annual Report of the Director of the Geophysical Laboratory. Carnegie Institution of Washington.
Chicago-referens (17:e uppl.)Não informado. Annual Report of the Director of the Geophysical Laboratory. Washington: Carnegie Institution of Washington.
MLA-referens (8:e uppl.)Não informado. Annual Report of the Director of the Geophysical Laboratory. Carnegie Institution of Washington.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.