Παραπομπή APA
Drucker, P. F. 1., & Nelson, O. T. (1977). People and performance: The best of Peter Drucker on management. New York: Harper's College Press.
Παραπομπή Chicago StyleDrucker, Peter F. 1909-2005., and Oscar Tivis Nelson. People and Performance: The Best of Peter Drucker On Management. New York: Harper's College Press, 1977.
Παραπομπή MLADrucker, Peter F. 1909-2005., and Oscar Tivis Nelson. People and Performance: The Best of Peter Drucker On Management. New York: Harper's College Press, 1977.
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