Francis, P. A. (1998). Hard lessons: Primary schools, community, and social capital in Nigeria. World Bank.
Չիկագոյի ոճի (17րդ խմբ.) մեջբերումFrancis, Paul A. Hard Lessons: Primary Schools, Community, and Social Capital in Nigeria. Washington, D.C.: World Bank, 1998.
MLA (9րդ խմբ.) ՄեջբերումFrancis, Paul A. Hard Lessons: Primary Schools, Community, and Social Capital in Nigeria. World Bank, 1998.