Cita APA (7a ed.)

Sobel, A. (2013). Power questions to win the sale: Overcoming nine critical sales challenges. Wiley.

Cita Chicago Style (17a ed.)

Sobel, Andrew. Power Questions to Win the Sale: Overcoming Nine Critical Sales Challenges. Hoboken, N.J.: Wiley, 2013.

Cita MLA (9a ed.)

Sobel, Andrew. Power Questions to Win the Sale: Overcoming Nine Critical Sales Challenges. Wiley, 2013.