Dixon, M., & Adamson, B. (2011). The challenger sale: Taking control of the customer conversation. Portfolio/Penguin.
Čikaški stil citiranja (17. izdanje)Dixon, Matthew, i Brent Adamson. The Challenger Sale: Taking Control of the Customer Conversation. New York: Portfolio/Penguin, 2011.
MLA način citiranja (9. izdanje)Dixon, Matthew, i Brent Adamson. The Challenger Sale: Taking Control of the Customer Conversation. Portfolio/Penguin, 2011.
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