Stutely, R. (1991). The Economist Numbers Guide: The Essentials of Business Numeracy (6th ed.). Profile Books Ltd.
Citazione stile Chigago Style (17a edizione)Stutely, Richard. The Economist Numbers Guide: The Essentials of Business Numeracy. 6th ed. London: Profile Books Ltd, 1991.
Citatione MLA (9a ed.)Stutely, Richard. The Economist Numbers Guide: The Essentials of Business Numeracy. 6th ed. Profile Books Ltd, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.