Stutely, R. (1991). The Economist Numbers Guide: The Essentials of Business Numeracy (6th ed.). Profile Books Ltd.
Chicago-referens (17:e uppl.)Stutely, Richard. The Economist Numbers Guide: The Essentials of Business Numeracy. 6th ed. London: Profile Books Ltd, 1991.
MLA-referens (9:e uppl.)Stutely, Richard. The Economist Numbers Guide: The Essentials of Business Numeracy. 6th ed. Profile Books Ltd, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.