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Dyfyniad Arddull ChicagoMcClelland D. C. Power Is the Great Motivator. Boston: Harvard Business School Pub, 2008.
Dyfyniad MLAMcClelland D. C. Power Is the Great Motivator. Harvard Business School Pub, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.