Stutely, R. (1991). The Economist Numbers Guide: The Essentials of Business Numeracy (6th ed.). Profile Books Ltd.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStutely, Richard. The Economist Numbers Guide: The Essentials of Business Numeracy. 6th ed. London: Profile Books Ltd, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रStutely, Richard. The Economist Numbers Guide: The Essentials of Business Numeracy. 6th ed. Profile Books Ltd, 1991.
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