Southern Provinces, Nigeria. Education Dept, & Northern Provinces of Nigeria (Nigeria). Education Dept. Annual report on the Education Departments of Nigeria. Govt. Printer.
Lua i Stíl Chicago (17ú heag.)Southern Provinces, Nigeria. Education Dept, agus Northern Provinces of Nigeria (Nigeria). Education Dept. Annual Report on the Education Departments of Nigeria. Lagos: Govt. Printer.
Lua MLA (8ú heag.)Southern Provinces, Nigeria. Education Dept, agus Northern Provinces of Nigeria (Nigeria). Education Dept. Annual Report on the Education Departments of Nigeria. Govt. Printer.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.