Nigeria. Office of Statistics. Digest of statistics. The office.
Lua i Stíl Chicago (17ú heag.)Nigeria. Office of Statistics. Digest of Statistics. Lagos: The office.
Lua MLA (8ú heag.)Nigeria. Office of Statistics. Digest of Statistics. The office.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.