NATIONAL BOARD. (2014). Elements of Business mathematics and statistics: Story text. Changombe Industrial Area.
Citazione stile Chigago Style (17a edizione)NATIONAL BOARD. Elements of Business Mathematics and Statistics: Story Text. Tanzania: Changombe Industrial Area, 2014.
Citatione MLA (9a ed.)NATIONAL BOARD. Elements of Business Mathematics and Statistics: Story Text. Changombe Industrial Area, 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.