Federal Inland Service. A Comprehensive Tax History of Nigeria. Safari Books.
Lua i Stíl Chicago (17ú heag.)Federal Inland Service. A Comprehensive Tax History of Nigeria. Safari Books.
Lua MLA (9ú heag.)Federal Inland Service. A Comprehensive Tax History of Nigeria. Safari Books.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.