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David McClelland - Wikipedia
McClelland’s Three Needs Theory: Power ... - Education Library
David McClelland | Department of Psychology
David McClelland Biography – Contributions To Psychology
McClelland's Human Motivation Theory - Mind Tools
David C. McClelland | SPSP
Need theory - Wikipedia
David McClelland - Harvard Square Library
David Clarence McClelland — Harvard Gazette
McClelland, David C. | SpringerLink