Hesselbein, F., & Cohen, P. M. (1999). Leader to leader: Enduring insights on leadership from the Drucker Foundation's award-winning journal. Jossey-Bass.
Chicago-viite (17. p.)Hesselbein, Frances, ja Paul M. Cohen. Leader to Leader: Enduring Insights on Leadership from the Drucker Foundation's Award-winning Journal. San Francisco: Jossey-Bass, 1999.
MLA-viite (8. p.)Hesselbein, Frances, ja Paul M. Cohen. Leader to Leader: Enduring Insights on Leadership from the Drucker Foundation's Award-winning Journal. Jossey-Bass, 1999.
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