Drucker, P. (2026, January 20). Peter Drucker quote. Quotesia. Retrieved from https://quotesia.com/peter-drucker-quote/574072
Drucker, Peter. “Peter Drucker quote”. Quotesia. 20 Jan. 2026: https://quotesia.com/peter-drucker-quote/574072.
Drucker, P. (2026). Quotesia [Online]. Available at: https://quotesia.com/peter-drucker-quote/574072 (Accessed: January 20 2026).
Drucker, Peter. “Peter Drucker quote” Quotesia. https://quotesia.com/peter-drucker-quote/574072 (accessed January 20, 2026).
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