Campbell, D. P. (1985). Take the road to creativity and get off your dead end. Center for Creative Leadership.
Citace podle Chicago (17th ed.)Campbell, David P. Take the Road to Creativity and Get off Your Dead End. Greensboro, N.C: Center for Creative Leadership, 1985.
Citace podle MLA (9th ed.)Campbell, David P. Take the Road to Creativity and Get off Your Dead End. Center for Creative Leadership, 1985.
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