Campbell, D. P. (1999). Complete Inklings: Columns on Leadership & Creativity. Center for Creative Leadership.
Cita Chicago Style (17a ed.)Campbell, David P. Complete Inklings: Columns on Leadership & Creativity. Center for Creative Leadership, 1999.
Cita MLA (8a ed.)Campbell, David P. Complete Inklings: Columns on Leadership & Creativity. Center for Creative Leadership, 1999.
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