Sherman, S. J., Sperry, J. P., & Vucelich, S. (2014). Five keys of powerful business relationships: How to become more productive, effective and influential. McGraw-Hill Education.
Chicago-Zitierstil (17. Ausg.)Sherman, Sallie J., Joseph P. Sperry, und Steve Vucelich. Five Keys of Powerful Business Relationships: How to Become More Productive, Effective and Influential. New York [u.a.]: McGraw-Hill Education, 2014.
MLA-Zitierstil (9. Ausg.)Sherman, Sallie J., et al. Five Keys of Powerful Business Relationships: How to Become More Productive, Effective and Influential. McGraw-Hill Education, 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.