Cita APA (7a ed.)

Shapiro, R. M., Dale, J., Ripken, C., & Barshefsky, C. (2015). The power of nice: How to negotiate so everyone wins--especially you! (3rd ed.). Wiley.

Cita Chicago Style (17a ed.)

Shapiro, Ronald M., James Dale, Cal Ripken, y Charlene Barshefsky. The Power of Nice: How to Negotiate so Everyone Wins--especially You! 3rd ed. Hoboken, New Jersey: Wiley, 2015.

Cita MLA (9a ed.)

Shapiro, Ronald M., et al. The Power of Nice: How to Negotiate so Everyone Wins--especially You! 3rd ed. Wiley, 2015.