National Research Council (U.S.). Committee on the Preservation of Geoscience Data and Collections & ebrary, Inc. (2002). Geoscience data and collections: National resources in peril. National Academies Press.
Chicago-referens (17:e uppl.)National Research Council (U.S.). Committee on the Preservation of Geoscience Data and Collections och Inc ebrary. Geoscience Data and Collections: National Resources in Peril. Washington, D.C.: National Academies Press, 2002.
MLA-referens (9:e uppl.)National Research Council (U.S.). Committee on the Preservation of Geoscience Data and Collections och Inc ebrary. Geoscience Data and Collections: National Resources in Peril. National Academies Press, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.