Harrell, K. (2007). Connect: Building success through people, purpose and performance. Harper Collins.
Chicago Style aipamenaHarrell, Keith. Connect: Building Success Through People, Purpose and Performance. New York: Harper Collins, 2007.
MLA aipamenaHarrell, Keith. Connect: Building Success Through People, Purpose and Performance. Harper Collins, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.