World Bank. Operations Policy Dept & World Bank. Learning and Leadership Center. (1996). Handbook on economic analysis of investment operations. World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)World Bank. Operations Policy Dept و World Bank. Learning and Leadership Center. Handbook on Economic Analysis of Investment Operations. Washington, D. C: World Bank, 1996.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)World Bank. Operations Policy Dept و World Bank. Learning and Leadership Center. Handbook on Economic Analysis of Investment Operations. World Bank, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.