Drucker, P. F. (1977). People and performance: The best of Peter Drucker on management. Harper's College Press.
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Chicago Style (17th ed.) Zitazioa
Drucker, Peter Ferdinand. People and Performance: The Best of Peter Drucker on Management. New York: Harper's College Press, 1977.
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MLA (9th ed.) Zitazioa
Drucker, Peter Ferdinand. People and Performance: The Best of Peter Drucker on Management. Harper's College Press, 1977.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.