Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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