APA (7e ed.) Bronvermelding

Dixon Matthew. (2012). Challenger Sale: Taking Control of the Customer Conversation. Portfolio.

Chicago (17e ed.) Bronvermelding

Dixon Matthew. Challenger Sale: Taking Control of the Customer Conversation. London: Portfolio, 2012.

MLA (9e ed.) Bronvermelding

Dixon Matthew. Challenger Sale: Taking Control of the Customer Conversation. Portfolio, 2012.

Let op: Deze citaties zijn niet altijd 100% accuraat.