APA引文

Nigeria. Federal Inland Revenue Service, ebrary, Inc, & Okauru, I. O. (2012). FIRS handbook on reforms in the tax system (2004-2011). Safari Books.

Chicago Style (17th ed.) Citation

Nigeria. Federal Inland Revenue Service, Inc ebrary, and Ifueko Omoigui Okauru. FIRS Handbook on Reforms in the Tax System (2004-2011). Ibadan, Nigeria: Safari Books, 2012.

MLA引文

Nigeria. Federal Inland Revenue Service, et al. FIRS Handbook on Reforms in the Tax System (2004-2011). Safari Books, 2012.