Harrell, K. (2007). Connect: Building success through people, purpose and performance. Harper Collins.
Chicago-Zitierstil (17. Ausg.)Harrell, Keith. Connect: Building Success Through People, Purpose and Performance. New York: Harper Collins, 2007.
MLA-Zitierstil (9. Ausg.)Harrell, Keith. Connect: Building Success Through People, Purpose and Performance. Harper Collins, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.