Não informado. (2000). Bulletin of the Department of Geology. University of California Press.
Chicago-referens (17:e uppl.)Não informado. Bulletin of the Department of Geology. Berkeley, Calif: University of California Press, 2000.
MLA-referens (8:e uppl.)Não informado. Bulletin of the Department of Geology. University of California Press, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.