APA (7th ed.) Zitazioa
Drucker, P. F. (2005). The daily drucker: 366 days of insight and motivation for getting the rights things done. (ed.). Amsterdam.
Chicago Style (17th ed.) Zitazioa
Drucker, Peter F. The Daily Drucker: 366 Days of Insight and Motivation for Getting the Rights Things Done. ed. Butterworth-Heinemann: Amsterdam, 2005.
MLA (9th ed.) Zitazioa
Drucker, Peter F. The Daily Drucker: 366 Days of Insight and Motivation for Getting the Rights Things Done. ed. Amsterdam, 2005.
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