Lua APA (7ú heag.)
Nigeria. Federal Inland Revenue Service, ebrary, Inc, & Okauru, I. O. (2012). A comprehensive tax history of Nigeria. Safari Books.
Lua i Stíl Chicago (17ú heag.)
Nigeria. Federal Inland Revenue Service, Inc ebrary, agus Ifueko Omoigui Okauru. A Comprehensive Tax History of Nigeria. Ibadan, Nigeria: Safari Books, 2012.
Lua MLA (9ú heag.)
Nigeria. Federal Inland Revenue Service, et al. A Comprehensive Tax History of Nigeria. Safari Books, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.