Kettering, C. (2026, April 18). Charles Kettering quote. Quotesia. Retrieved from https://quotesia.com/charles-kettering-quote/117982
Kettering, Charles. “Charles Kettering quote”. Quotesia. 18 Apr. 2026: https://quotesia.com/charles-kettering-quote/117982.
Kettering, C. (2026). Quotesia [Online]. Available at: https://quotesia.com/charles-kettering-quote/117982 (Accessed: April 18 2026).
Kettering, Charles. “Charles Kettering quote” Quotesia. https://quotesia.com/charles-kettering-quote/117982 (accessed April 18, 2026).
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