NATIONAL BOARD. (2014). Elements of Business mathematics and statistics: Story text. Changombe Industrial Area.
芝加哥风格引文NATIONAL BOARD. Elements of Business Mathematics and Statistics: Story Text. Tanzania: Changombe Industrial Area, 2014.
MLA引文NATIONAL BOARD. Elements of Business Mathematics and Statistics: Story Text. Changombe Industrial Area, 2014.
警告：这些引文格式不一定是100％准确.