Stutely, R. (1991). The Economist Numbers Guide: The Essentials of Business Numeracy (6th ed.). Profile Books Ltd.
Chicago-viite (17. p.)Stutely, Richard. The Economist Numbers Guide: The Essentials of Business Numeracy. 6th ed. London: Profile Books Ltd, 1991.
MLA-viite (9. p.)Stutely, Richard. The Economist Numbers Guide: The Essentials of Business Numeracy. 6th ed. Profile Books Ltd, 1991.
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