Drucker, P. (2025, September 12). Peter Drucker quote. Quotesia. Retrieved from https://quotesia.com/peter-drucker-quote/574079
Drucker, Peter. “Peter Drucker quote”. Quotesia. 12 Sep. 2025: https://quotesia.com/peter-drucker-quote/574079.
Drucker, P. (2025). Quotesia [Online]. Available at: https://quotesia.com/peter-drucker-quote/574079 (Accessed: September 12 2025).
Drucker, Peter. “Peter Drucker quote” Quotesia. https://quotesia.com/peter-drucker-quote/574079 (accessed September 12, 2025).
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