Southern Provinces, Nigeria. Education Dept, & Northern Provinces of Nigeria (Nigeria). Education Dept. Annual report on the Education Departments of Nigeria. Govt. Printer.
Citação do estilo Chicago (17ª ed.)Southern Provinces, Nigeria. Education Dept, e Northern Provinces of Nigeria (Nigeria). Education Dept. Annual Report on the Education Departments of Nigeria. Lagos: Govt. Printer.
Citação MLA (8ª ed.)Southern Provinces, Nigeria. Education Dept, e Northern Provinces of Nigeria (Nigeria). Education Dept. Annual Report on the Education Departments of Nigeria. Govt. Printer.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.