ebrary, Inc, & Okauru, I. O. (2012). Federal inland revenue service and taxation reforms in democratic Nigeria. Safari Books.
芝加哥风格引文ebrary, Inc, 与 Ifueko Omoigui Okauru. Federal Inland Revenue Service and Taxation Reforms in Democratic Nigeria. Ibadan, Nigeria: Safari Books, 2012.
MLA引文ebrary, Inc, 与 Ifueko Omoigui Okauru. Federal Inland Revenue Service and Taxation Reforms in Democratic Nigeria. Safari Books, 2012.
警告：这些引文格式不一定是100％准确.