Francis, P. A. (1998). Hard lessons: Primary schools, community, and social capital in Nigeria. World Bank.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিFrancis, Paul A. Hard Lessons: Primary Schools, Community, and Social Capital in Nigeria. Washington, D.C.: World Bank, 1998.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিFrancis, Paul A. Hard Lessons: Primary Schools, Community, and Social Capital in Nigeria. World Bank, 1998.