Fredriksen, B., Brar, S., & Trucano, M. (2015). Getting textbooks to every child in sub-Saharan Africa: Strategies for addressing the high cost and low availability problem. World Bank Group.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Fredriksen, Birger, Sukhdeep Brar, و Michael Trucano. Getting Textbooks to Every Child in Sub-Saharan Africa: Strategies for Addressing the High Cost and Low Availability Problem. Washington, District of Columbia: World Bank Group, 2015.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Fredriksen, Birger, et al. Getting Textbooks to Every Child in Sub-Saharan Africa: Strategies for Addressing the High Cost and Low Availability Problem. World Bank Group, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.