Drucker, P. (2026, January 16). Peter Drucker quote. Quotesia. Retrieved from https://quotesia.com/peter-drucker-quote/574073
Drucker, Peter. “Peter Drucker quote”. Quotesia. 16 Jan. 2026: https://quotesia.com/peter-drucker-quote/574073.
Drucker, P. (2026). Quotesia [Online]. Available at: https://quotesia.com/peter-drucker-quote/574073 (Accessed: January 16 2026).
Drucker, Peter. “Peter Drucker quote” Quotesia. https://quotesia.com/peter-drucker-quote/574073 (accessed January 16, 2026).
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