National Research Council (U.S.). Committee on American River Flood Frequencies. (1999). Improving American River flood frequency analyses. National Academy Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Committee on American River Flood Frequencies. Improving American River Flood Frequency Analyses. Washington, D.C.: National Academy Press, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Committee on American River Flood Frequencies. Improving American River Flood Frequency Analyses. National Academy Press, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.