APA (7e ed.) Bronvermelding

Dixon, M., & Adamson, B. (2011). The challenger sale: Taking control of the customer conversation. Portfolio/Penguin.

Chicago (17e ed.) Bronvermelding

Dixon, Matthew, en Brent Adamson. The Challenger Sale: Taking Control of the Customer Conversation. New York: Portfolio/Penguin, 2011.

MLA (9e ed.) Bronvermelding

Dixon, Matthew, en Brent Adamson. The Challenger Sale: Taking Control of the Customer Conversation. Portfolio/Penguin, 2011.