Harrell, K. (2007). Connect: Building success through people, purpose and performance. Harper Collins.
Citace podle Chicago (17th ed.)Harrell, Keith. Connect: Building Success Through People, Purpose and Performance. New York: Harper Collins, 2007.
Citace podle MLA (9th ed.)Harrell, Keith. Connect: Building Success Through People, Purpose and Performance. Harper Collins, 2007.
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