Nichols, W. D. (2000). Regional ground-water evapotranspiration and ground- water budgets, Great Basin, Nevada. U.S. Dept. of the Interior, U.S. Geological Survey For sale by the U.S. Geological Survey, Information Services.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nichols, William D. Regional Ground-water Evapotranspiration and Ground- Water Budgets, Great Basin, Nevada. Reston, VA, Denver, CO: U.S. Dept. of the Interior, U.S. Geological Survey For sale by the U.S. Geological Survey, Information Services, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Nichols, William D. Regional Ground-water Evapotranspiration and Ground- Water Budgets, Great Basin, Nevada. U.S. Dept. of the Interior, U.S. Geological Survey For sale by the U.S. Geological Survey, Information Services, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.