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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Committee on the Preservation of Geoscience Data and Collections و Inc ebrary. Geoscience Data and Collections: National Resources in Peril. Washington, D.C.: National Academies Press, 2002.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Committee on the Preservation of Geoscience Data and Collections و Inc ebrary. Geoscience Data and Collections: National Resources in Peril. National Academies Press, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.