Duflo, E. (2000). Grandmothers and grandaugthers: Old age pension and intra-household allocation in South Africa. National Bureau of Economic Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Duflo, Esther. Grandmothers and Grandaugthers: Old Age Pension and Intra-household Allocation in South Africa. Cambridge: National Bureau of Economic Research, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Duflo, Esther. Grandmothers and Grandaugthers: Old Age Pension and Intra-household Allocation in South Africa. National Bureau of Economic Research, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.