Haveman, R. H. (1972). The economic performance of public investments: An ex post evaluation of water resources investments. Resources for the Future by the Johns Hopkins Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Haveman, Robert H. The Economic Performance of Public Investments: An Ex Post Evaluation of Water Resources Investments. Baltimore: Resources for the Future by the Johns Hopkins Press, 1972.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Haveman, Robert H. The Economic Performance of Public Investments: An Ex Post Evaluation of Water Resources Investments. Resources for the Future by the Johns Hopkins Press, 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.